How do you no if your pregnant before your pissed period ?

Difficult to know: It is difficult to know because it is too soon/early to cause significant/noticeable change in your body. Some women have the morning-sickness/nausea early, but not very common--more often starting after the period is missed. Home pregnancy often not able to detect pregnancy of less than 2 wks--maybe blood test. Take prenatals regularly if u r trying. Consult doc. Good luck.

Pregnancy might: Be detected with an early pregnancy test prior to a missed period.