scared

I’ve been with my boyfriend for about 6-7 months. we have unprotected sex like 2-3 times a week but mainly on weekends which is when we have the time to. he finishes in me every single time. i’ve never gotten pregnant. could i be infertile? i’m really scared. i don’t keep track of my ovulation. but according to eve rn i’m in my fertile window. but i’ve been on my fertile window before and we had unprotected sex and still not pregnant.