8 wks pg with twins and one is measuring 3 days behind. Should I be concerned?

[wish09]

Here is some background info:

We had our first U/S @ 6w4d - 2 sacs, 2 babies (Twin A measured 6w4d, Twin B measured 6w2d), 2 heartbeats, both at about 120 bpm

At 6w6d I had some severe abdominal cramping during the middle of night.

Went in for another U/S to make sure everything was okay @ 7w0d - 2 sacs, but only 1 heartbeat at 132 bpm. We were told one of the babies had stopped growing. Of course, we were heartbroken.

Then at our U/S @ 8w0d - 2 sacs, 2 babies, 2 heartbeats. Twin A measured 8w0d with a heartbeat of 169 bpm. Twin B measured 7w4d with a heartbeat of 174 bpm. We were shocked to discover we were still having twins, but thrilled.

My RE is concerned with Twin B's growth being 3 days behind, despite the strong heartbeat. He said there is still hope that everything will be fine, but there is also a chance that we may lose the baby. He wants us to be cautiously optimistic.

I have another u/s in 2 weeks with my OB, as my RE released me yesterday. I will be 10 weeks at that point and RE says that u/s will tell a lot. In the meantime, I'm hoping and praying for the best.

My question is, has anyone experienced this before or know someone who has and what was the result? I'd appreciate hearing any experience - good or bad. TIA

[Miss Conception]

I find it very strange that your doctor would be concerned with the difference in growth rates. At your stage of gestation, it is not uncommon to have these differences in growth because the u/s technology is not exact and because the embryos are so tiny. Many women have these differences early on and go on to have wonderfully healthy babies.

Best of luck!

[stacyleigh]

Originally Posted by Miss Conception

I find it very strange that your doctor would be concerned with the difference in growth rates. At your stage of gestation, it is not uncommon to have these differences in growth because the u/s technology is not exact and because the embryos are so tiny. Many women have these differences early on and go on to have wonderfully healthy babies.

Best of luck!

Everything that miss conception said. My twins always measured differently and they are 10 weeks and are the picture of health. They were anywhere from 1 day to 4 days difference through out the pregnancy. Try to remember that they are two different babies, they will not be the same anything ever. Plus, the u/s is not an exact technology, there are many factors that could effect the measurements. The tech doing the u/s, the machine, ect.

good luck
Stacy

[wish09]

Thanks Miss Conception and Stacy. I am hoping and praying you are right and that everything will be just fine with my babies. My next u/s cannot get here soon enough.

[BC-blu_sky]

Mine weighed the exact same when they were born and they always measured different days. When you are this early they are so small just the slightest bit off on the measurement can be three days. It is much more accurate the bigger they get when they do crown to rump. They are two different babies and they are going to be different. It is hard not to compare but you may as well get used to not doing it now because it is even harder not to compare them once they are here...