Period from hellšŸ˜©

Iā€™ve bled through a super tampon in about an hour 5-6 different times today and Iā€™m cramping sooo bad. Iā€™m also on birth control, and my period has been irregular and lasting 2 weeks each month for the last 5 monthsšŸ¤¦šŸ¼ā€ā™€ļø is this normal? Should I call my doctor?