Babies switching sides??

I got very confused at my amnio appt with the peri today. This is only the 2nd time we've been to the peri, so we don't know her very well. But, Baby A has been on my right side from day one and Baby B on my left. If you ready my pp from last Saturday, Baby B had wiggled her way behind her sister. But the peri kept calling my right side B and my left side A.

My DH and I both explained that that was the opposite of what we've known all along. And asked if it was possible for them to switch sides this late. I supposed that Baby B could have corrected herself and pushed her sister out of the way. Maybe? They kept saying, well we have A as anterior and B as posterior. But I have NO IDEA what that means!

Then we went in for the NST and watched their heartrates because Baby B has consistently had the faster heart rate (by 20 beats or so). And, the faster heart rate was coming from the baby on my left side...just where Baby B should be. So now I'm very confused. They've only measured 4oz difference in weights, so I don't think their birth weights will help us tell them apart either...but maybe it will.

I know it isn't a really big deal. We've wanted to meet them before we assigned their names anyway. But I really wanted to compare their womb personalities (and they've been very distinctive) to their real personalities and now it looks like we're all mixed up!

Is it possible that the peri...the expert...was wrong? Or could she actually be right and they switched sides?

 

I got very confused at my amnio appt with the peri today. This is only the 2nd time we've been to the peri, so we don't know her very well. But, Baby A has been on my right side from day one and Baby B on my left. If you ready my pp from last Saturday, Baby B had wiggled her way behind her sister. But the peri kept calling my right side B and my left side A.

My DH and I both explained that that was the opposite of what we've known all along. And asked if it was possible for them to switch sides this late. I supposed that Baby B could have corrected herself and pushed her sister out of the way. Maybe? They kept saying, well we have A as anterior and B as posterior. But I have NO IDEA what that means!

Then we went in for the NST and watched their heartrates because Baby B has consistently had the faster heart rate (by 20 beats or so). And, the faster heart rate was coming from the baby on my left side...just where Baby B should be. So now I'm very confused. They've only measured 4oz difference in weights, so I don't think their birth weights will help us tell them apart either...but maybe it will.

I know it isn't a really big deal. We've wanted to meet them before we assigned their names anyway. But I really wanted to compare their womb personalities (and they've been very distinctive) to their real personalities and now it looks like we're all mixed up!

Is it possible that the peri...the expert...was wrong? Or could she actually be right and they switched sides?

 

Assuming they're separate sacs and placentas, I'm pretty sure it would be impossible. The placentas are attached to the uterus, so that can't ever change, therefore while the babies can swim around in the sacs, I think the doc could still tell who's who at the c-section because of placentas? Anterior means towards the front, posterior back... I get confused about positions every time they do an US on me too, but at least mine or b/g, so that solves any questions.

 

The are in separate placentas that fused together sometime around 10wks or so. I'm still confused. I want to believe that the expert knows what she's talking about, but I also think I know myself and my body (and my babies now) pretty well. So...all I can do is say "hmm".

 

My girls changed positions - from vertex to breech and transverse - both of them tried out all positions right up until delivery -
hence the c-section. I know they can do that but switch sides -
doesn't seem like it but ??????

baby A should be closer to your cervix

 

Congrats on making it so far!!! I know my situation was completely different, but both of my girls were presenting head down, and Gracie was baby A and Maddie was baby B until two days before delivery. I was in the hospital having my BP monitored and they were trying to connect the belts around me to hear the girls' heartbeats, I told them the general area we usually found the girls' heartbeats in, but they couldn't find Gracie's heartbeat. I was getting scared so they decided to do an u/s and Gracie had moved up into the baby B position and Maddie had moved down into the Baby A position. The way I understood it is the baby that would deliver first is A and second is B. We of course had no problems keeping A from B, b/c ours didn't exactly swap around, just moved slightly up and slightly down. And, ours were in separate sacs and had separate placentas. I should also mention that I was 35.5 weeks when this move happened. Good luck!!!

 

Yesterday my dr. said that generally the baby that's going to come first is usually baby a and the other is b, but that is changing for some dr.'s. Could your peri be one of those dr.'s that says the first baby is b and the second is a? Just a thought!