Cyst on ovary

Kaila • Married mother of one baby girl!
Has anyone had a cyst on your ovary ? I just found out today that I have a 12mm one on my right ovary and it's keeping me from having a period. 
This really sucks because I'm a surrogate and I'm supposed to have my FET (frozen embryo transfer) in February but if this cyst doesn't go away I won't be able to and will have to move it. 
I'm back on BCP @ 2/day for 7 days then 1/day for a week. Back to clinic for ultrasound on the 4th. 
Pray ladies; I have worked so hard for this and now it could all go up in smoke
Thanks in advance for the comments.