women pregnant with twins now or who have had twins how much did they weigh at 23 weeks 6 days- 24 weeks ? I am pregnant with modi twin boys, at 21 weeks I found out they were suffering from TTTS. I was sent to Houston and immediately had the laser ablation surgery. today I am 23 weeks and 6 days. baby A the recipient baby is now 1lb 6 ounces and baby B the donor baby is now 1 lb 5 ounces so only a 1% weight and growth difference. the dr is telling me they look great and the surgery was a success!