Your cycle is likely gonna be a day early or late...its normal...the brown discharge was because it was just old blood...its normal to have brown blood...about how long ago did yall have sex??....and if u are pregnant you can still experience implantation bleeding which is lighter than a normal period...it usually last 2-3 days but can last longer...its pink and red brown!! but no you can not have a period while pregnant but you can occasionally bleed!!! Hope i helped some!!!
Correct, you wouldn't get your period if you were pregnant.