More pooping=maybe pregnant?

Hey all so right now I should be in the middle of my period. I had the mirena iud for my 3 rd month now first time ever having it. My first period was normal. Second I was bleeding for a week but about med-light and now there’s pretty much nothing but brown spotting which is what I had with my daughter. I noticed Iv been pooping a lot more too. Once a day if not maybe 2 and Iv never had this happen so muchbefore I’m not sick I don’t have a stomach ache or anything. Could it be linked??? Is all this normal??