Strange thing 3months ppt


So last night at 3am I woke up with sharp pains in my stomach, and then in my back and then after a while it was feeling JUST like contractions. It wasn’t something I ate, and I had just finished my first period after birth. Went to the emergency room after being in pain for two hours, then after getting there I felt totally fine!??? So I left and now I’m thinking to do a pregnancy test, but still call my doctor Monday. Anyone have any ideas?!