Unprotected sex

So I lost my virginity and after that me and my boyfriend started having unprotected sex. I love it. It feels awesome and it’s a great time. I’m 18 and he’s 20 so definitely not planning on having a baby. The first time we barebacked I was ovulating but it was towards the end, he pulled out and I know he didnt get any cum in or around me but I know it’s possible to get pregnant from Precum but it’s hard too and it’s mostly dead and weak sperm. It’s been around a week after that and we’ve continued to have unprotected sex. I’m now a day late and I feel like I’m coming down with a cold. What’s the possibility I could be pregnant? Sorry to bother you all!