I haven't missed any pills during the month, other than taking one 2 hours late and some like 15 minutes apart, but nothing super bad. I was on the placebo ( week 4 ) of the pack and me and my boyfriend had sex, he didn't finish but I'm worried about pre-seminal fluid as he didn't use a condom. What is my risk of pregnancy? It's been 4 days and my breast are starting to feel sore but I'm not sure if it's a side of the birth control or not... ( I started on the second month 2 days ago ) what is my risk of pregnancy? I'm still considered young so I wasn't sure... any answers would be great!! I'm really scared... thanks!!