Mirena IUD

So I was just wondering what some of you ladies experienced after getting yours in. I got mine 5 days ago and had some light spotting that stopped. Then me and my SO had sex yesterday and it hurt a little but not enough to stop. Well, I started lightly spotting again later that night. NOW I'm bleeding like crazy. I went pee and the whole toilet filled with blood, pads are getting soaked way quicker than I've ever had in my entire life. Is this normal to bleed this much? I didn't even bleed this much after delivering my daughter 😳