So my girlfriend is coming back from being abroad for 4 months and has been off the pill for that time. I sent her pills a couple weeks ago so she could start. She thought she would have her period sooner, but she's just having it now. She says she has to start taking them the Sunday after her period. That will be the day after she gets back. So I asked her how long we had to wait for the pill to be effective, and she said that it was early enough in her cycle that it was unlikely she would get pregnant and it was ok even without the pill... How full of shit is she? I'm not trying to make another "I'm too lazy to use protection, looks like I'm going to be a father" thread, I'm just curious if what she said holds any truth.