Missing period Microgestin Fe

Lindsay
I changed birth controls a little over 2 months ago. The new one is Microgestin Fe 1/20. I haven't had a period since switching. I have taken a pregnancy test after each missed period. Both of them were negative. I am coming up on my 3rd missed period and my nipples have become very sore and sensitive. I was just wondering if anyone has had this problem and what you did?