Answer by
whoareyou (3483)
It typically takes about 3 months for a birth control to begin to show side-effects, and missing periods and spotting are very common side-effects for any birth control pill. Yasmin has been known to have other harsh side-effects that you might consider talking to your doctor about switching. Ortho-Tri-Cyclen-Lo has the lowest effective hormone level, therefore the least noticeable side-effects.