help??

so my boyfriend and i had unprotected sex tonight , and he finished in me. im not in my fertile window at all, according to this tracker. how worried should i be about this ?? my next period is due in like 10 days. we had a pregnancy scare last month, and got really excited about possibly being pregnant. ( i tested positive 3 times but blood work came back negative ) . i dont know much about pregnancy at all, i lived in an all male household till i was 18 lol.