I took plan b a couple months ago after having unprotected sex with my boyfriend. He didn't ejaculate in me but I read up on precum possibly causing pregnancy. I read some places that plan b can mess up your cycle for awhile. A week ago we did the same thing except this time I didn't take plan b. I was using a period tracker to track my next period but it didn't come and it still hasn't. The chances of getting pregnant from precum is slim and my boyfriend was cautious about the whole ejaculate within 24 hours and urinate thing that I've read about precum. I've been reading about miss period symptoms non-related to pregnancy and pregnancy symptoms and they are really similar and it's making me worry. So am I pregnant or not?