I am pregnant with twins and at my 6 weeks scan, Baby A only had the sac but no
fetal pole and no hb. Baby B had sac,
fetal pole at hb of 107. At my 8 weeks scan, we could see the fetal pole for Baby A and even a hb of 92 but was only measuring 6 weeks, 2 days instead of 8 weeks. Baby B was measuring on target at 8 weeks and had hb of 158. Dr. also told me that Baby A might not make it as Baby A was measuring almost two weeks behind and hb shoudl have been over 120 at this point.