period issues

musicgirl

So my period ended April 15 and it's back today 😔😣. It's not pose to come back til around May 9th . I don't understand and I'm in pain more than usual which started yesterday thought I had a stomach virus. 😔 I'm so confused should I call doctor or is it nothing. This has never happened before. It's came early before but not in the same month. is this normal??