HELP PLEASE!

Hi everyone. I'm 18 and a college student who started taking the pill on November 3rd and I started my period on the 9th. I've always have irregular light periods with little to no cramping (except for whenever I would wake up in the middle of the night with awful cramps but that didn't happen often). The pass three days it has looked like a crime scene and my cramping is so bad that I can't get out of bed and will last for hours. I tried taking 3 Advil but it didn't do anything. Also my mom had endometriosis (I haven't been diagnosed with it but it is a fear of mine) and I don't know if these are signs. I guess I'm just asking for advice or if this is common.Thank you in advance. 🙂