the cyst acting up implantation bleeding?

I have not had a period for the months of january and feburary. I figured the reason for no cycle in january was because of stress due to the fact I was not having sex. Starting feb 1st I was having sex on the regular with my fiance and it was unprotected. He did not ejacualte everytime because he is disabled. On the 20th I spotted brown and on the 21st the day my period was due I had sex and he ejaculated inside of me and and I spotted again. the following day I was in terrible pain so I went to the ER. I was diagnosed with a cyst on the right ovary (they said it was common in young women) and bacterial vaginosis. I am antibotics and pain medicine.For the last 5 days I have beed spotting but its either all pink or brown with a little bit of red. I have been cramping in my uterus and been sleepy with sore breast. I can never see it in my urine and its always on my tissue or my pantyliner. Could this be the cyst acting up implantation bleeding or a odd period ( my periods are heavy)