Okay I had my period about a week ago and it was normal and today I had some brownish stuff in my underwear it lasted a little while and stopped.I have been nasusa and my boobs hurt and all that good stuff but I had been having those sympthoms before my period but my period came and now I'm experincing this and this never happened to me could I be pregnant

It may be due to ovulation... some women do have some slight bleeding or discharge at that time, even if it doesn't occur every month. The discharge may also be just what remained from your last period.

Since you had a normal period, it is unlikely that you are pregnant, but wait another week and try a pregnancy test. If negative, wait and see what happens when you would expect your period for April.