I have been on the shot for over a year and I'm switching to pills. My doctor wrote the prescription, but now I can't get in touch with him to find out when to start taking them. My "window" for getting my next shot would've ended this wednesday, so I don't know if I should just start this Sunday even though I haven't gotten a period. Has anyone switched, and if so, what did your doctor recommend for a start date? I guess if worse comes to worse, I'll just assume I'm not fully protected for the first month, but I'd rather not! Thanks.