I lost my virginity. And me and my boyfriend had unprotected sex but for only like 1 min. He did not ejaculate for sure. I had sex with a condom the next day and the day after that. It did not break. Not on birth control. I had unprotected sex on June 25th. I had "pregnancy symptoms" 4 days after losing my virginity. It was nausea, back pains, cramping and minor head aches. I had my last period on june 10th and lasted till june 17th. I have really irregular periods. Before june, I didnt get my period for 4 months. So i'm suppose to get in july 10th but i didnt. I waited a week after i missed it and took a HPT. It came out negative 2 times. Now the only "pregnancy symptoms" I have is breast pain but only last for 2 min or so and can't breathe after. I think (not too sure) I get these pains even though i dont get my period. I've been getting tired but not everyday and is not constant. I'll be tired and be fine couple of hours later. Do you think I'm pregnant or is it just my body changing? I'm 14 please help!!!!