My boyfriend came in me 3 times yesterday & i took the morning after right after. my period tracker indicated that i'm at a low chance of being pregnant i'm 7 days from my next period.. but today i'm having cramps & my undies are wet & sticky. sigh.

Should be protected: That is within the time limits for using a morning-after pill, so the pill should work. However, medications are not 100% effective every time. So, if a woman misses her next regular period, she can do a urine pregnancy test one week after missing her period. Home urine pregnancy tests are very accurate by 3 weeks after sex.