i just keeping having these - wow, why didn't i think of that! - moments when i'm in these message boards. i agree the gyne should know better!
i did notice that when i was breastfeeding and not on the prenatal vitamins i seemed to be less C but i attributed that to all the water i was drinking (it felt like i NEVER stopped drinking water through the day and night when i was nursing my daughter).
now that i'm not nursing any more and back on BC the C (with the "explosions" after 4 or 5 days of C) has come back