hello, i need all the help i can get. i was taking birth control pills(Yaz, provided at the doctors office) for almost a year and had to stop taking them ( doctors orders) because of a frequent bad stomach. my boyfriend and i had unprotected sex on january 1st, he pulled out before eqaculating, but went on my vagina/lower stomach. im near positive none actually entered my vagina but just in case took a plan b pill the day after. i took both pills together within 72 hours of unprotected sex and did not experience any sickness/spotting after taking them.then 4 or 5 days later we had unprotected sex again, but only for a second and we stopped, he did not eqaculate. however, for the past week i have been experiencing extreme tenderness in my nipples(they also have white specks on them), headaches more than usual, i find myself burping a lot and my breasts, as well as stomach look like they have swollen. my lower back is having a little pain and im constantly hungry. i took an at home pregnancy test( first response) yesterday and it came out negative. i am not sure when i am supposed to get my expected period because i do not remember the exact date i stopped taking my pills. however i do know i was on my period on the 18th of december and was finished by the 22ed.and i am never more than 2 days late. should i be worried if i am pregnant ? any suggestions are helpful.
thank you.