as long as you are a non-smoker and in good health (not significantly hypertensive not a significant diabetic etc. ) you can take the pill. of course you want to be on a low-dose pill -- most women can do well with a pill that has 30 micrograms of ethinyl estradiol or lower. so if your pill says that it has 50 micrograms of estrogen check with your health-care provider about switching to a lower dose if possible. remember women can get pregnant in their 40's -- i personally have delivered three women who were 47.
if you are over 40 is it still ok to be taking the pill?