Originally Posted by mspufkin
Yes, missing three days is not good. Even when you miss one your chances increase greatly, but three is bad news! Sorry!
Actually, with most combined pills, one missed pill does not call for back-up. Check your individual pill packet information insert, but for quite a few back-up is only needed after TWO missed pills.
To the O.P, missing three pills means your girlfriend could indeed get pregnant. Taking birth control pills now will NOT stop a pregnancy.