so me nad my bf had sex dec 20th we did use a condom & im 2 weeks late for my period & I started birth control jan 4th I do have irregular periods all the time but yesterday I had ( black dark brown discharge ) which means im gettinq my period & I checked again & I had red & brown discharge but it went away so right now I took a pregnancy test & it came out positive but then I bleed & went away & now I have white discharge with red or sometimes just white ?