IUD and sex/fingering

I got an iud a couple days ago (Mirena). I just had a baby almost 9 weeks ago so I definitely do not want to get pregnant again anytime soon lol but I loooove when my bf cums in me I’ve missed it so much I’m so tired of using condoms😒 Anyone else let their bf cum in them using this birth control?

Also could being fingered shift the position of the iud? I know there’s strings that he could potentially feel and the actual iud is in the uterus, but I obviously don’t want it shifting at all (I’m sure you’ve heard the horror story when it has)