Tell me I’m just overthinking it

According to the app I was suppose to get my period on the 20th of this month. I’m only 16 and it’s not odd for me to have irregular periods but I am currently five days late in my cycle.

On the 13th I was fooling around with my boyfriend but we didn’t have vaginal sex and he did not ejaculate. We did grind on each other, though, but we were both wearing underwear (making that 2 layers of fabric between us). There probably was precum on his penis and possibly on his underwear during this.

Is there anyway I could have gotten pregnant from this? Again, he didn’t ejaculate at all that night and his penis never came in bare contact with my vagina.

I know deep down there’s a little to no chance of pregnancy from this lol but I just need to hear it from someone else to make me feel better 💕 I’m new to a period tracking app anyway and it probably isn’t 100% correct with my cycle anyway :p right??