Pregnancy test....again!!!

Shanice • I`m 22. Engaged.
Tomorrow I'm gonna buy another pregnancy test. Idk why I have this feeling but I think I tested too soon. Yes, my period came but it's the things that was different this time. It lasted for 2 days & then 2 days later I started spotting. 
I know I'm probably being overly dramatic & I'm probably not even pregnant but since that never happened before since I started getting my period I'm suspicious & just in case someone says this....no I have not been stressing out or anything.