unprotected sex

Katrina
So it was my first time with my boyfriend last week and we had unprotected sex , my periods arnt normal anyway because of eating  disorders at the moment , I didn't have a period for 3 months and then I had it and then havnt had it since again so it is due this month so anyway after the unprotected sex (3 times) he pulled out first 2 but wasn't sure about the third so I'm worried I'm pregnant because I havnt come on but feel like I am but still nothing .. I looked it up and it said that you can feel like that early start of pregnancy ? Does anyone have advice please ? I'm scared 😩😩😩😓😓😓