I would say that the rate of premature births is higher, mostly because of elective c-sect in the older IVF bracket and those who are constant worriers.
I had 2 Premature Rupture of membranes with 2 IVF pregnancys later this was diagnosed Incompetant cervix...we dont know whether it was genetic or the amounts of D&C's I had to go throu as well as ALOT of IVF.
Eliza was 37 weeks because she was an elective c-section so tech prem but to the peads she was full termish
Bec