I have a question....is it possible

Brianna
I have a 7 month old daughter....I'm on birth control also....the last time I had sex was 2 weeks ago on the last day of my period (spotting)....can I be pregnancy? So my last period was a week late it kept on acting like I was going to get it but it was late but I end up having a very normal period 3 days.... and I am feeling bloated butterfly feeling I'm sick i think cold and I almost threw up in the morning from brushing my teeth...all I had my first time.... I'm just being paranoid right there's no chance that I could be pregnant....I had my period (it was late but had it) and it's too early for symptoms if I'm only a week....right?????