Help!!!!

I need help ladies so I had a period a couple days ago o bleed for 3 days the first day was light the second day was heavy at times the third day was light. But certain smells are making me sick like im vomitting from certain smells I cant handle it. This morning it was one from what my finance was cooking now it was the smell of wet dog. Do you think I could be pregnant?? I have not had sex since around my ovulation last month my period started on 15dpo