Hindi ito dapat i-DIY based sa pag-inom lang ng Provera, bes, kailangan mo talagang makonsulta ng doctor para malaman mo kung ano talaga ang situation mo at what's the best contraception option for you. Provera is a hormone-based method pero depende sa dami, frequency, at paano mo sineskyuhan ang schedule, kaya may chance pa rin ng pregnancy kung hindi properly used. Nakakamangha kung gaano karaming mum friends ko na na-confuse sa birth control methods dahil dito, talaga lang dapat from your doctor ang proper guidance para sa family planning mo, di ito something na pwedeng trial and error lang. What I can say lang is na there are so many reliable contraception choices out there now, so please get professional advice muna bago mag-decide!