I was on Yasmin for years when my doc and I decided to switch over to Portia. I am on my second pack of if. On Yasmin I always got my period on Tuesday. With the Portia I got my period with the first pack on Monday. Its now Wednesday and I have not yet gotten my period with this new bc (again this is my 2nd pack). I have never missed a pill or was even late with it (I use my cell phone alarm clock to take it). Has this happen to ladies when you switched types of birth control? I almost want to go out and take a pregnancy test but I feel like I am getting ahead of myself.

Any advice would be appreciated