Could i be pregnant?

So August 14 I took my paraguard out (hormone free IUD) after that me and my husband had unprotected sex twice (different days). Usually I get period symptoms a day or two before my period which i didnt. No cramping no bloating nothing so I thought maybe i wouldn't get my period or I'd be late but no i got it right on the 31st of august and i was done bleeding yesterday September 1. It wasn't heavy but it wasn't light either.. My period usually last 6 days which was weird for me because that never happens. My doctor said I could get pregnant any time since my IUD is out now. So my question is could i be pregnant?