Mono Mono Twins

Mono Mono twins (Monoamniotic-Monochorionic or "Mo-Mo" twins) are always identical and incredibly rare (about 1 in 10,000 births). They will share both their amnions, chorions and placenta too. They only happen in about 1% of monozygotic (identical twins) pregnancies. This is primarily due to a later splitting of the egg which results in a shared placenta and shared sac. (An extremely late split can even produce conjoined twins). This sharing of the amniotic sac with no barrier between the two babies is why this particular type of twin pregnancy in considered especially high risk. Monoamniotic-Monochorionic twins have a general in-utero mortality rate of approximately 50%, largely due to cord entanglement. Other risks include Twin to Twin Transfusion Syndrome (TTTS) and premature birth.

Mo-Mo Twins Ultrasound

If you have been diagnosed with mo-mo twins, you should be seeing a perinatologist (a doctor specializing in high risk pregnancies). Your extraordinary twin pregnancy will need much closer monitoring and expert care. Just keep in mind that your twin babies themselves are usually perfectly healthy, it is just their situation in the womb which is the cause for concern. The more accurate information you can arm yourself with the better. Be sure to thoroughly discuss all of your questions and concerns with an experienced obstetrician. Your personal situation and pregnancy will have their own set of factors that need to be discussed.

Mono Mono Twins Support

It’s a good idea to talk with other parents who have gone through the same thing, as they can give needed support and first hand information on what to expect and how to cope. Being well informed and connecting with someone who knows what you are going through may help to ease your worry. Keep in mind that there are many positive outcomes and stay focused on that.

We also offer a unique selection of personal stories from some of our readers (below). Read on, or share your own story...

Here are some helpful support/informational links:

Want To Share A Story About Your Mono-Mono Twins?

It's really simple to do and you could be helping many parents in the same situation by sharing your distinctive experience. Feel free to make your story as long, short, or detailed as you wish. If you would like to add a photo, that's okay too. You can even remain anonymous. You will be creating your own special page unique to the topic of Mono-Mono Twins. (photos must be between 800x600 pixels)

Read What Other Visitors Have Experienced With Mono-Mono Twins

Just click on any of the titles below to see contributions from other visitors to this page.

5 Months Pregnant With Mo Mo Twin Boys 
We found out when I was 8 weeks pregnant that we were having mo mo twins. There was no membrane and only one yoke sack. This has been a stressful pregnancy …

Mono Mono Twins (girls) 
When I first found out I was pregnant I was 9 weeks. I had scheduled an OB appt at the hospital. I was then set up for and ultrasound on Nov 1st, 2012. …

My Mono Twins Annalise and Alexis 
Well I was shocked to find out that after having 5 single birth children, I was now expecting twins! Mono Mono twins that are quite rare from what I understand. …

Mono Mono Twins Alyssa and Alexis 
My first doctor appointment was when I was 11 weeks pregnant. Since I had two miscarriages before (at 12 weeks and 7 weeks) they did an ultrasound and …

2nd Set of Twins, Mono-Mono 
We were shocked to find out that my wife was pregnant with twins for the second time at 12 weeks. We were immediately told they were mono-mono and the …

Mila & Gianna - 21 Weeks - Mono Mono Birth 
My mono-mono twin daughters are beautiful. I delivered them Saturday, September 16, 2011 at 6:00 am after a night of labor caused by an induction once …

My Mono-Mono Girls 
Well, I suppose you have to start at the beginning. And here's mine: My husband is an infantry man in the Army. He was deployed for around 4 1/2 months …

Our Minnesota MoMo Twins 
We found out at 16 weeks that I was having twins, which wasn't a real shocker to me since I have twins and triplets in my family. But then two weeks later, …

Pregnant, But Not Sure If They Are Mono Mono Twins Yet 
Hello, I am 6 weeks pregnant and at 5 1/2 weeks my doctor saw 2 heart beats in one sac. I have been reading so much about Mono Mono twins and it kinda …

Our Little Miracle Babies 
At about 8 weeks, we found out that we were having twins! At that time, my doctor told me that she had good news and bad news. The good news was "congratulations, …

Very Nervous About Possible Mono Mono Twins 
I have a 2 1/2 year old son who was born at 29 weeks (very healthy and normal now) due to incompetant cervix. I had to have a cerclage placed at 23 weeks …

Mo Mo Twin Girls 
I found out at 8 weeks I was having twins, and a week later the doc told me there was no dividing line. I was admitted to the hospital at 24 weeks to monitor …

Searching for a Miracle 
I found out when I was 10 weeks pregnant that I was expecting twins. One week later I went in for another ultrasound and found out I was having mono mono …

My Momo Girls 
I found out I was having mono mono twins when I was 10 weeks pregnant. They gave me the bad news abuot the 50/50 percent chance of their survival. I was …

Mono Mono Twins and Very Confused 
I found out at 12 weeks we where expecting twins. Then, at 14 weeks I was told they are mono/mono twins. The Dr. gave us 50/50 chance, said there is nothing …

Mono Mono Twins, Interesting Story - Due Date: 10/02/2010 
TODAY 3/12/2010 11 WEEKS NOW.. EXCITED BOUT HAVING MY TWINS... I WENT TO THE ER WITH STOMACH PAIN AND THE DOCTOR TOLD ME I AM PREGNANT SO THEY SEND ME …

My Healthy Mono Mono Toddlers 
I have mono mono girls and they are such a blessing. They are growing up into such beautiful girls. They are 14 months now, born 8 weeks early. They …

Mono-Mono and Scared 
Hello, I am only 10 weeks pregnant with Mono-Mono twins. I am so scared. We found out at 6 weeks that we were having twins and confirmed they were Mono-Mono …

Miracle Mono-Mono Twins With Tangled Umbilical Cords 
HI EVERYONE. I FOUND OUT AT 8 WEEKS THAT I WAS HAVING MONO-MONO TWINS. WE WERE TOLD THE ODDS OF THEM NOT SURVIVING AND ALL OF THE RISKS ASSOCIATED WITH …

My Little Mo-Mo Miracles, Maddison & Cameryn 
I first found out I was having twins at my 12 week scan. It was such a surprise but I didn't realize how rare this pregnancy was until I searched the internet. …

Scared But Hopeful... 
I am 13 weeks now but found out @ 6 wks that i am having triplets with a mono/mono twins. The doctor gave me the option of aborting the mono/mono but that …

Mono/Mono Miracles 
I discovered I was pregnant the end of June when I was taken to the ER at St Johns Hospital in Queens, NY for extreme pain and excessive bleeding. It was …

My Mono Mono Hawk-I Girls 
Found out at 8 weeks I was pregnant, at 10 weeks I knew we were mono/mono. I didn't know much about mono mono or just how high risk and rare they are. …

My Little Miracles 
Hi..my name is Danielle and I was fortunate enough to live close to NYC, I had excellent care(so important) and two beutiful twin girls. When my local …

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MoMo Twins Died Due To Doctor 
When I was 20 weeks pregnant I was diagnosed with MONO MONO twin girls. I was told they had a 50% survival rate and I needed to go to a specialist. That …

Mono Mono Miracles 
After finding out about having Twins around 13 weeks my wife was having a pretty normal pregnancy. At 24 weeks during another routine ultrasound the tech …

Mono-Mono Angel Babies 
In 2007 I found out at 18 weeks that I was gonna have idetical twin girls. Then they told us we were having Mono-Mono Twins and went into all the detail... …

Triplet Gestation With Monoamniotic Twins 
I am almost 8 weeks pregnant with triplets. Baby A is a singleton, baby B & C are identical and share the same sac. I am concerned as we could not see …

Worried About Twins 
I just got an ultrasound today, which would make me approx 6 weeks. They found two babies sitting right next to each other but could only see one heart …

Just Diagnosed With Mono Mono Twins 
I am 8 weeks pregnant and I was just diagnosed with mono mono twins. The doctors do not see a membrane separating the two. I have been referred to a …

Martinez Momo Twins 
I recently went to the doctor because I took a pregnancy test that came out positive. I went for my first visit and did the routine check up and did an …

Mono-Mono Twins 
I was diagnosed wtih having mono-mono twins at my first doctor's appointment. I was sent to a perinatologist immediately. Of course, they were given …

Scared About My Momo Twins 
Hey I'm 9 weeks pregnant with momo twins I'm 17 years old and I found out my twins were monoamniotic at 7 weeks. I'm realLy upset and scared about this …

My Momo Babies 
My husband's sisters are momo twins. I never really thought much of it when my mother-in-law said how dangerous it is. This is my fourth pregnancy and …

MoMo Twin Girl Pregnancy Question 
I'm 16 weeks pregnant with MoMo twin girls. My High Risk Pregnancy doctor has suggested I go in for laser surgery in a couple of weeks due to the fact …

Mono Mono Twin Girls Born At 32 Weeks With Tangled Umbilical Cords 
Our son was six months old and we discovered we were unexpectedly pregnant. We had wanted to try to get pregnant two months from then yet it was still …

My MoMo Babies! x x 
I found out my twins were momo when Marc and I went for our first scan at 11 weeks. They told us we were expecting twins and then they explained that …

Nick & Trent - Healthy MoMo Twins 
We found out that we were having twins at our first ultrasound. The doctor called a few days later and said we would need to go for a level 2 becasue …

My Little Boys 
Hi, my name is Stephanie and I was told that I was having mono mono twins. It was the most amazing thing ever. I was so happy. I lost my little boys at …

My Mo Mo Girls 
Im 25 weeks and on bedrest in the hospital. I'm 19 years old and scared but happy all at the same...just praying to God that my baby girls come out safe …

Terminated Our Mono/Mono Twin Pregnancy - I feel so guilty and sorry. 
Earlier this summer my fiance and I discovered we were pregnant. (Actually, it was confirmed I was pregnant on the same day my Grandmother passed away.) …

SCARED 
I am 19 and already have a 18 month old. I found out I am 18 weeks preganant with twins and they are mono mono. I find out their sex September 16, 2008. …

A Scary But Healthy Mono-Mono Twin Pregnancy 
I have 4 beautiful children, 2 boys and 2 girls. My sons are 7 and 2, while my girls are identical twins age 5. My husband and I were overjoyed when …

Guilt And Shock 
I did not know I was carrying mono-mono twins until after they were born as my pregnancy was in the early 70's and ultrasound wasn't used as much. …

God Needed Them More 
About four years ago, I found out that I was pregnant. My husband and I were really excited because we had been trying to have a baby for two years prior …

Mono-mono twin girls pull through! 
My twin baby girls were born at 31 weeks 6 days. My husband, Leslie and I were prepared to have premature babies since 12 weeks along. Our twins were confirmed …

Mono Twin Boys 
Hi everyone...I had mono twins in 2010 (Boys). The pregnancy wasn't great, as I had scans every week, but in the end after a C-section, my two baby joys …

Mono-Mono Twins Are Now 11. God's Mercy Kept Us 
After many years of trying to get pregnant, I was ecstatic to find out that I was pregnant with twins. Shortly after this awesome news, we were told …

Danielle 
7 years ago I had mono twins they were born at 24 weeks - 1lb 9oz and 1lb 10oz. It was rough and scary. They had twin to twin transfusion syndrome. And …

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My Mom and Aunt are Mono-Mono Twins 
They have the usual call each other at the same time, buy the same dress type of things. My favorite thing is that all the grand kids call them both Grandma …

Zach and Zaya - MoMo Twins Now 5 Years Old 
When we found out we were having twins we were excited. We already had 7 kids and what could be more fun than having twins? We soon learned that the twins …

Momo Twin Boys After Heart Attack 
My momo boys were an unxepected joy. I had a heart attack at age 34 with only 40% of my heart working properly. Then, I became pregnant with identical …

Mono-Mono Twins Adrian and Julian 
My sweet twins are four and soon to be five-years-old. When my husband and I found out we were going to be parents, we were elated. I had had two previous …

Jacobie & Dominik - Mono Mono Twin Boys 
When I got pregnant I knew the exact date of conception, which pushed my ultrasound until the 20 week mark. I was seeing a doctor, and taking care of myself …

Christy's Mo-Mo Twin Girls 
My mo-mo twins are now five. I didn't find out I was having twins until 24 weeks and was hospitalized at 26 weeks (the day I found out they were mo-mo). …

Mono-Twins Patricia and Maryanne 
We found out we were having twins 12 years ago and we were so happy,then we went for a scan at 12 weeks and they told us that they were mono-mono twins …

29 Weeks Mo/Mo Girls 
I will start by saying in August 2011, after trying to conceive for a good bit of time. I finally found out at 5 weeks I was pregnant and celebrated the …

22 Weeks Pregnant With Momo Girls 
I was surprised to find out 5 months ago that I was pregnant. I was in the process of moving out-of-state at the time, so it wasn't until I was settled …

Our Little Mono Mono Girls Are At 22 Weeks 
We've made it to 22 weeks.... I was diagnosed with mono mono twins at 10 weeks, given all the scary complications and told our twins had fluid on the back …

17 Weeks Pregnant With Mono-Mono Twin Girls 
Wow! I've gotta say I am definitely on roller coaster ride with this pregnancy. Today (Jan. 30, 2012) I went in for my second ultrasound scan with …

My Beautiful Mono Mono Baby Boys 
First and foremost, just about 2 years ago I was told I could not have children because of a condition I had called PCOS (polycystic ovary syndrome) Obviously …

Don't Stress 'Till You're Absolutely Sure 
At 9 weeks I was told we were having mono-mono twins. We were distraught but ready to face the challenge. At 14 weeks I told my work that I would have …

My Mono Mono Blessings From the Lord 
I FOUND OUT I WAS PREGNANT IN JAN OF 2010,I REAllY DIDN'T KNOW WHAT TO DO AND PLUS I ALREADY HAD A SON THAT WAS TURNING 1 IN MARCH. I WAS LEANING MORE …

Triplet Pregnancy with MoMo Identical Twins 
I am 6w 3d pregnant. Yesterday, we found out that they are triplets. There are 2 sacs, 1 baby in 1 sac and 2 identicals in the other. Dr. thinks the twins …

Monoamnionic Monozygotic Twins With a Fraternal Triplet 
I was pregnant with monoamniotic monozygotic twins and a fraternal triplet. The perinatologists were not too thrilled when we decided not to "remove" the …

My Mo-Mo's 
I was told up front that I was pregnant with monoamniotic twins and was refered to a specialist. I had US every 4 weeks and non-stress tests everyday …

Our Momo's 
My fiance and I were really happy to be expecting. I had done 3 tests at diffrent times of the day and they had all come back with really strong positive …

9 Weeks Pregnant With Mo-Mo Twins 
I recently had an ultrasound and found out I was pregnant with mo mo twins. The doctor thinks they share a vitelline duct - which is the vessel that connects …

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