Can I be pregnant even though I bled? Please read.

I had the Skyla IUD for 8 months. I got my IUD out the 12th of September... I had a light period September 13-20 I had sex the days leading up to ovulation according to my app. Those days were Sept 21, 23, 24, 28 and he didn’t pull out. I started heavily bleeding for 5 days beginning the night of the 28th I’m done bleeding now it is now October 6 and I am feeling a bit nauseous and having little cramps ... is it likely that even though I bled I got pregnant? Because like supposedly you bleed a ton after having an IUD.