Thoughts and advice please

Kathryn • Hello everyone, my name is Kathryn and my fiancé and I are trying for baby number 2. We have a 4 year old daughter
Has anyone had a period or what they think is their period while pregnant? I am curious what it was like? I was almost 2 days late starting which I never am then I started out very light and it went to medium like flow and now it's totally stopped at 4 days. I have never had a period like this ever. So I don't know if it's just my body changing or possible chance of pregnancy.