HELP? plz

H

Last month was my second month on the IUD and second time having sex since insertion. After sex I had light brown spotting for a few days after and then it went away. I got my period a few weeks after that too but it was a few days late. Is spotting after sex normal with an IUD? I didn’t spot the first time but the second was a little more rough. Let me know your experiences! (I have the Kyleena hormonal IUD)