Period after weaning Breastfeeding

So I've had my period a few times since giving birth now, (baby is 9 months) and I just weaned him off of breastfeeding, and now this period seems 100x worse. Soaking through a super tampon in like 2 hours! Anyone else have any problems??
-also started new birth control the first day of my period, so wonder if that may be contributing? It's been awhile since I had to remember! 🙄