PLEASE SOMEONE REPLY! Has anyone gotten a polyp removal?

I’ve gotten a polyp removed 4 months ago and since then I still have not gotten my period. I’m starting to freak out about it and think something went wrong. I have went to two appointments since then due to having a kissed period and my OB have gave me Provera which didn’t work. How can my doc see if something went wrong or what is going on with my period? I have an appointment on Thursday but it’s really bothering me and I’m not finding anything online about having a delayed period for this long.