I Have Had Nexplanon Inserted For 2 1/2 Yrs. Supposed

I have had nexplanon inserted for 2 1/2 yrs. Supposed to have it removed the end of July. I have noticed horrible pain and bloating that I am now assuming is ovulation pain the last few months. It last a couple days and I was thinking I may have a cyst. But I am now worried because I thought I wasn't supposed to ovulate on the nexplanon.