I've had my period for 9 days now. I have been on Sprintec for over a year now, but I've been on birth control for over 3. My periods have always come on time and have been short but this is the second time this has happened. In august, my period came a week early and lasted for 14 days. in sept, it came on time and lasted for 4 days. I went to the gyno that month and she only asked if i had taken a pregnancy test. I wasn't pregnant. This month, it's happening again. It's not spotting, it's a regular flow and now im getting worried. I have cramps, fatigue, and mood swings. should i change my birth control to another one? is it a good idea to call my gyno?