Nak, this is really something you need to ask your doctor or OB right away, hindi ko ma-advise yan kasi depends sa maraming factors, like kung pregnant ka man o anong brand ng pills ang gusto mo. Please don't start on your own without checking first, okay? A few of my mum friends kasi nag-start ng pills without proper timing and naging complicated lang, mas safe talaga pag guided ng doctor. Quick visit sa clinic mo or even a call to your OB will clear things up!