did you experience spotting b4 confirming pregnacy?

i have never been a person to spot( it’s all or nothing w my periods) so on sunday( when my period was supposed to come on) i spotted like sooo little.. but i honestly though it was my period coming on i threw in a tampon, when it was time to change it, there was a drop of brown blood. then i threw in another one later, and ever since the first tampon i put in (sunday) it’s been clear ( no blood on tampon) it’s now tuesday, so i’m thinking this is weird because when my period comes on it’s comes in like a river( again, all or nothing) i NEVER spotted a day in my like. i always just had my period. & i NEVER in my life had blood one day and none for two days. i’m considered 2 days late today. any opinions?