I am 36 and been on lo loestrin fe for a few years. i weigh 195 and was wondering how save is this pill to prevent pregnancy? i take it each night on time at 7?

Over time since the inception of oral bcp's use, the levels of estrogen/progestin contained in the current bcp has dropped significantly, but statistical prevention of pregnancy remains in the high 90's if taken as directed. The basic premise is to stop ovulation by stopping ovarian function.

BCPs such as Lo-Estrin, if taken properly, are generally 100% effective, but you are approaching an age where alternative methods may pose less danger to your health. I advise that you see a trusted ob-gyn for examination and evaluation of options, including weight loss.