I need help

Margaret

Ok so February I didn't get my period at

all comes March 1 I had unprotected sex but on march 6 I got my period April and May I didn't get my period now its June still no period I was supposed to came on my period on the 7 all I'm getting is brown discharge I took a HPT it was negative should I be worried I'm just so curious to know this would be my first child