9 days ago my boyfriend and I had sex, we used a condom but afterwards he stuck it in me for like 10 seconds and I didn't know he took his consom off (he wanted to feel what it was like). He pulled out very quickly as he had already came previously, but I am very scared about getting pregnant so I went about 8 hours later and took Plan B. I know I was ovulating at the time, and I usually take birth control but I am off it this month because it was making me very nauseous. Now it is 8 days after taking Plan B and I have had very light abdominal pain (like period cramps) for the past 12 hours. I don't know if this is pregnancy related or Plan B related. I'm stressing out so much. My period is due in about 4 days. Any help?