AM I PREGNANT!?

An

I was suppose to stay my period three days ago. It is completely not normal for me to be late at such a time in the month. I haven’t been stressing or anything all month to make it late. Thing is. Me and my boyfriend had sex on my ovulation day and the days around it. I’m having all prego symptoms. But. I took a pregnancy test the day I missed my period and the day after but it came back with a barely faint line at first then negative. It was a first response from the dollar store.. I am so confused. Somebody please help me.