IUD birth control

Hi ladies so I was just wondering or either being very paranoid lol but I had my birth control put in on the 13th it’ll almost be a month since I’ve had it in and I haven’t felt discomfort nothing at all towards it just the first few days obviously , I’m not so sure if it’s good but I have a check up on Friday to see what’s going on if it hasn’t moved or none of that. The other day my boyfriend told me he cummed in me and it recently happened again so twice already but do you ladies know if for sure I’m not pregnant or none of that? How can I know if I’m fine or not or do I just have to wait and see??..