Normal for one twin to be smaller ?

Question

Sorry for spamming this page i just have so many questions! 
i was having bleeding yesterday and went to the ER . they did an ultrasound and said that Baby B is measuring smaller than baby A . they found a heartbeat on both of them . Baby A’s heart rate was 180 and Baby B’s was 160. 
is it normal for one twin to be a little bit behind ? 
Thanks ! ❤️

Answer

Yes it’s very common and will most likely be that way for the remainder of the pregnancy or they might catch up to each other. Did the dr say how much smaller? If they are fraternal it’s possible one implanted layer.

Answer

That’s how my twins are as well and doctors do not seem to be worried.

Answer

i’m 20 weeks with mo/di twins boys. baby a for me is measuring at least a week ahead! so he’s out big boy mesuring at 21 weeks, while baby b is measuring right at 20 weeks. my doctor isn’t to concerned about it and everything is normal

Answer

Be careful on that! I have Mo/Di boys and after I went into preterm labor (they stopped me at 4cm) the last ultrasound before birth showed they were significantly different sizes as one was 4 lbs and one was 6 lbs and they actually ended up TTTS! Doesn’t mean yours do, just be cautious is all I’m saying!

Normal for one twin to be smaller ?

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