Hi guys I need help! I been having my IUD for a year and 3 months now. I always get my period regular and heavy to normal that lasts between 4-7 days periods even with my IUD. I had sex around January 9th and my period normally starts at the end of the months. I haven’t got my period yet and I been late for 10 days now. I bleed for like 2 days last week and idk if that was my period or idk. And I did 2 pregnancy tests and I got negative . PLEASE HELP