It ultimately depends on each individual women, how was her recovery, healing, did she have any severe bleeding after her c/secs.

My DH asked my OB who did DS#1`s c/sec how many c/sec`s can women have, his answer was as many as they are able to have, apparently he had attended a conference overseas (I think it was USA) and a woman there had 20 c/secs, yes 20

If I was her, I`d certainly be getting another opinion.