Ayoung female has begun taking herbal supplements that mimic the effects of progesterone. what affect will this have on her monthly cycle? view available hint(s) a young female has begun taking herbal supplements that mimic the effects of progesterone. what affect will this have on her monthly cycle? she will be more likely to become pregnant since the high levels of progesterone will promote the ovarian cycle. she will most likely not menstruate because the high levels of progesterone will maintain her endometrial lining, mimicking pregnancy. she will begin to have mild bleeding or spotting throughout the month due to the high levels of progesterone. she will exhibit high levels of gonadotropins due to the high levels of progesterone.