Hi ladies! I'm nervous again about size difference after today. Last week at 6w3d both babies had heartbeats and baby b had caught up in size measuring 6w2d (was just 5w the week before). Today baby b was just 6w5d so it didn't appear to grow much in a week. Heart rate was 134. Baby a measured 7w3d with a heart rate of 163. Has anyone else had such differences like these where everything turned out ok?
Re: 3rd ultrasound
Remember that the measurement is not an exact science, especially when they are really little. I have identical twins, where a size difference is more concerning, and I've had tons of ultrasounds now -- the measurements are a little different every time. The furthest apart that mine have measured was 5 days and that was completely unconcerning to my doctors (more recently, they've been 2-3 days apart). Presumably, you have fraternal twins, where a size difference is less concerning, and a heart rate of 134 at 7 weeks sounds really good to me.
Try not to worry!
3/22 ER: 25R, 20M, 15F. 9 genetically normal, and 3 survived to Day 5
3/27 ET: transferred 1 embryo, beta 9dp5dt=163, 12dp5dt=639
4/25 1st ultrasound at 7 weeks = identical twins with heartbeats?!!!
Ticker/Siggy Warning: Children and losses mentioned
TTC #1 since 7/2011
ME: 37 DH: 38
SA-12/28/11-normal
HSG-1/16/12-possible blocked left tube
BFP#1---CP 7/9/12
Hysteroscopy-8/9/12-blocked left tube for sure, proceeding with IUI#1
IUI#1 (Gonal-F + trigger)=BFP#2 m/c @ 19w1d D&E 1/23/13
IUI #2 (Gonal F + trigger)=BFP#3 EDD 1/6/14 TWINS!!!
Identical girls born 11/17/13
BFP#4 EDD 8/27/15 MMC at 7w6d
BFP#5 m/c at 6w
BFP#6 EDD 10/5/16 Going Strong! It's a Girl!