Stressed :(

3 days ago I had sex with my boyfriend and he came inside. I have the iud which causes bloody discharge for me (and also for my friend) I’ve been rlly stressed about it even though I know then iud is 99% effective it’s just my first time that he came inside and it’s got me rlly anxious that i could be pregnant. Every little thing has me anxious from a little bloody discharge (that I’m scared is implantation bleeding) to loss of appetite and it hasn’t helped that an adoption center came to my class to talk about types of adoptions and unplanned pregnancies Idk what to do plz help :/