pregnant without sex???? HELP

my period was april 3rd-8th. my boyfriend and i fooled around on the 10th. we don’t have sex but we were both naked and i grinded on him for not even 2 minutes ( i know what precum is but he says he doesn’t precum and i’ve never noticed it or felt it before but i researched that every guy precums and doesn’t know when they do). what’s the chances of getting pregnant off of precum in that way??? he didn’t stick it in either, i guess we were just jumping each other, but then i gave him head and a handjob and then he came on my stomach(beside my belly button). i wiped it off my stomach and put my shirt on and waited a few minutes to put my jeans on bc it was really hot and sweaty in his car. later on that day i took a bath....i’m a really anxious person and i have bad anxiety. is there any way i could be pregnant? i’m on birth control but i’ve only been on it a month. i started my birth control on april 10th and i spotted a week before my period so if i do that this month should i freak out??? would i need a pregnancy test, if so when??? please help i’m only 16.