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I and my boyfriend had a break for about a few months in summer until 1st of September. During that time, I had sex with 1 guy without protection on 4th of August while I was drunk, stupid of me. I was afraid so I took 72 hours pill the next day to prevent pregnancy. I got back with my boyfriend on 1st of September and we’ve been having unprotected sex (but he was always pulling out). I had my period 2 weeks earlier than it should have in August (11th) and September (16th). And in October I missed my period and took a test on Monday the 22nd and it was negative first but second line appeared hours later. Then 2 days later, I had positive immediately. I had an ultrasound 2 weeks ago and doctor said my baby looked 3 to 4 weeks. But I am so stressed and worried what if the baby is not my boyfriend’s? Is there any chance that it could be from that 4th of August? Is there a chance that the 2 periods were just vaginal bleeding and the ultrasound is so off about the date. lol. I know i am worrying about stupid thing and tell myself to stop but still.......