Help.

Br
Was just off my period last week. We had sex everyday leading up to my period an it was a 3 day long period normally 4 days. We had sex last nite I felt like I was ovulating had the Yukon egg white stuff. Lol. An I have been feeling butterflies all day an some tummy pain. I know it can't happen that fast. But could I have already been pregnant before I had my period???? An not known. Well I decided to take a test just to take one an this is the first time Iv ever had one come out an say pregnant ............. Should I take another in a couple hours an see or I'm so confused.