I just got a pack of Tri-Previfem. This is the first time I am using it and I haven't had any other birth control pills whatsoever. The pack starts on a Sunday. Do I have to wait until my period comes on (should be the 31st but my period is still irregular, I'm 16)? Or can I start right now? My doctor and I didn't go over it. Only which pull might be best for me…
And if I start the pack on my period do I start with the white pills or light green pills?