You have not had your period since July 3 but you had blood in your underwear today could it be your period?

have you took a pregnancy test and when was your last period and how much blood was and your underwear.

ok let's say you did not take a pregnancy test and you had a period in June and you had one in June was it normal that could have been your last period.

If the blood was dark red or look like old blood

If you have clotting blood then you could have been pregnant

best thing to do is take a test and go see your gyn