What Causes Headache And Sore Breast After Having Unprotected Sex?

I am very confused if i am pregnant now, and i am scared. I haave syptoms like feeling of puking everytime i eat, i feel dizzy and slight headache, then my breast is sore for almost three days now. we had an unprotected sex of my boyfriend ten days ago.I had irregular menstruation tahts why i cant predict it, I used pill after we had sex and continues it till now. Does using pill will avoid or affect the sperm and eggcell to be united.?? I am confused or just feeling paranoid cause I am a virgin that time and he was drunk so he didnt know if he cum inside me..please i badly need help.I dont want to be pregannat at this time.



I had my last peiod on June 5 then again on June 23.i am an irregular but its strange..my bf and I had unprotected sex on July12-19.is there a chance i might be pregnant? I am so stress now as i cant be pregannt now. I start using marvelon as soon as he leave and felt stranbge on my body.now i tried to take the pill twice a day.does it have negative effect on me>? i tried my pregnnacy kit today but says its negative however I am feeling not well. when is teh right time to check again?I hope u can help me please!!