Possibly pregnant?

Casady

My boyfriend works out of town. While he was in I was in the middle of switching my birth controls. So I’ve been forgetting to take it correctly. Well he was in while I was on the month break. We had unprotected sex. I ran to the bath room to pee and as I sat down on the toilet white stuff came out of my vagina. I didn’t think much about it.

4 weeks later I’m supposed to be starting my period. I’m 2 days late on my period. My boobs hurt to touch them, I’m so tired all the time, I have to pee all the time, my lower back hurts, my lower stomach where my uterus sits is firmer than normal, I feel bloated, I have had constant headache for about a week now.

I have taken 3 test all cane back negative. But they were cheap.... I need help... am I pregnant or am I about to start my period?