Had my 2nd u/s at 7w1d today.
Baby A: Measuring 7w2d, heartrate of 147 bpm
Baby B: Measuring 6w5d, heartrate of 139 bpm.
I go back next week and will continue seeing my RE through 10 weeks (I am really liking the weekly u/s!). Baby B is measuring a little behind, but heartrate looks good. I guess it's pretty common for one baby to measure behind? My RE just said "we'll keep an eye on Baby B" so I'm hoping B will eventually catch up?