Pregnant with twins measuring different

[ShyMintMember]

Hi. I went to an ultrasound when I was supposedly 7w4d and my doctor found two sacs with heartbeat - one measuring 7w1d and the other 7w. They are di-di twins! We went again today (10w1d according to the last ultrasound) and found the two babies - one measuring 10w6d (39.1mm) with very strong heartbeat and the other 10w1d (32.4mm) with a slower but not too slow heartbeat. Has anyone else been through this? Being a little worried about vanishing twin syndrome the whole pregnancy

I have twins ( 24 years old nearly ) I found out at 12 weeks so past where you are now , I went full term , both were healthy weights but there was about half a pound difference in size so I guess it’s not unusual for one to be a little bigger , there doesn’t seem to be much difference between yours but if you have concerns ask the medical team s they will know what is usual , good luck

I have no experience of this just wanted to offer a hand hold xx

I heard sometimes one twin gets more than the other .So you get one pudding who's eating everything and a skinnier twin. They have to keep a eye to make sure the skinnier one getting what they need. Like sometimes there's imbalance in what one is getting in relation to the other. But i don't know how they sort it just they have to monitor it very carefully .You need to ask about it

At dating scans DTD2 was apparently 2 days older than DTD1. They always measured a bit differently. They then swapped. DTD2 was high up behind my ribs, and at the end harder to get heartbeat, and I don't know whether she maybe didn't have as much room to grow because, despite originally having been older/bigger, when they came out she was 5lb8 vs DTD1 who was 6lb3, but DTD1 was the one who needed a stint in NICU for some extra feeding. And now, 12 years later, it's back to DTD2 being 2 inches taller and about half a stone heavier!

A long winded way of saying congratulations on twins because they are cool but mysterious and endlessly surprising. And you will be fine. Just take your lead from the medical team: if they're not worried, don't you be.

@stinkingbishop great advice, couldn't have put it better OP

Absolutely normal. When my DSIS was pregnant with twins, we were talking about strategies to tell them apart once born, even suggesting a dot of nail polish on a toe. Not needed. One was a lot bigger and still is, 9 years later!

Not been through this but if you look at your measurements on a ruler. 39mm and 32mm. It's so tiny! And they're trying to see and measure it through you.

They say scans can be up to a week out. So really if they're both measuring within a week of each other I'd not be too worried until later on when they can do a lot more to keep an eye on them.

Also their heart rates change a lot and it's normal based on so many things. Whether awake/asleep, sex of baby, what your blood pressure is at that moment in time.