Please no rude comments

I had unprotected sex with my boyfriend mostly cause I was too drunk to be smart at the time only once I always use condoms just cause I don't like birth control and haven't been in a relationship long. Anyways I wasn't anywhere near ovulating and now my period is four days late and I'm really scared. I took a pregnancy test it said negative, but would it be too soon to be accurate? My boobs really hurt and I spotted the day my period was supposed to start, the spotting is what really made me fearful. Any advice? Just on when to take another test or your similar experiences and the outcome??