Periods on the implant?

Hannah
Before getting the implant I had birth control pill  which totally screwed me up. I bled nonstop for months, then I got the implant and it was great. Didn't have my period for two months then got it. It has been a month now and I haven't gotten my period. Should I worry? I've seen people's responses and there's many saying they don't have their periods anymore and many saying it made their periods worse. Is it common for people to not have their periods so early in the implant? I've had it since around October- November. Please help! Very stressed over here! I'm in a very sexual committed relationship but I don't have ANY pregnancy symptoms.