"this is my 4th month on trinessa. my doctor put me on it to help with my heavy and irregular periods as well as my acne. the first 2 months didn&#039;t seem to have any effect on me other than make me break out. in fact, this first period i had on this medicine seemed longer (around 7 days) and more painful than ever before. i even experienced a bit of sickness around the first week. but i kept taking it, and it has finally started clearing up my acne and the last period i had was only 4 days with minimal cramping. this birth control is pretty effective for me, and it&#039;s finally doing it&#039;s job. the point is: give it time to work."