So I missed a week of my birth control because I had gone on vacation and had totally spaced on picking up my prescription. The day I had came back, a week later my boyfriend and I had sex and he accidentally came inside of me.   Since then, it's been about 10 days and in the past two days my breasts have grown in nearly an entire cups size, they're extremely tender, I've had a headache that won't stop, and I've been sick to my stomach. I'm also craving milk and I never ever drink milk and I've had nearly half a gallon already. Do you think it could be symptoms from starting my birth control again or the possibility I'm pregnant? My period should be in about 10 days. But might be later if I'm not pregnant because I started my pill pack a week later than normal.