Implant, period, or?

Hi, I know this is weird but I’m just really curious. I’ve been on birth control for a year or two. I’m active with my fiancé, and I always have the normal period like always. It’s usually a constant of medium to heavy period every month, bad cramps everything.

This month I got my “period” except I don’t know it was different. It lasted maybe a day or two, it wasn’t heavy nor medium it was just barely anything on the pad itself. I had cramps but not major ones like I normally do. Birth control is the only protection we use and it’s always worked well for us.

I don’t have to many symptoms of pregnancy? I think they are just normal.

I pee a little bit more, back pain, cramps here and there, headaches sometimes, tired, boob pain sometimes, emotional/moody?

These all seem normal to me but I just wanted to see? I never had easy periods and didn’t know if it was implant or maybe just stress?

It was brown and some red on the pad, when I wiped it was red and mixed with different clear discharge?