... sex in the morning and I used a condom but the second time I didn't cause you know stupid me. I didn't cum in her at all but then I found out about pre cum and how after ejaculating once it contains sperm after that. So I went and bought my gf plan b and she took it Tuesday night at 9 so far she hasn't gotten anything no blood no nothing and its been 5 days already can someone tell me if its gonna work or not?