What kind of bleeding is this? Can't be a period... Implantation? Miscarriage?

Okay so I gave birth March 12th. On April 18th I had my six-week checkup and got birth control pills. I started them on the 19th.

My designated time of taking them is 8 am... The first few days, I ended up taking them 1-2 hours late but I quickly got back on track. (once, I didn't have the pills with me and took it later that night)

At the time, I still had a bit of post-partum bleeding... but then maybe 2-3 weeks after first starting the pill, I got my period. (Note: I DO NOT take the last week of pills which cause you to get it, so I really shouldn't have gotten it, unless the pills hadn't kicked in yet.)

Before the period, my post-partum bleeding had barely been present.

After the period, I was done. No more bleeding at all.

Then a few days ago, more bleeding showed up. To this day, I am still bleeding but it changes every day. :/

It's not a period again because I've been taking the pill long enough now that it is working (and I said I don't take the last week) and I have not missed a day.

The first day of bleeding I thought it might have been a period because I got cramps but they went away and didn't come back after eating (as my period cramps do) and haven't gotten any since.

Two days ago, my blood looked black in the pad but when I wiped after peeing it was MAROON. For that day and another one, in the morning when I first peed, there would be dots of red in the toilet at the bottom... Like dried blood dots.?

Today, it was pink in the morning and now it's BRIGHT red.

The first day or two, it really did seem like my post-partum bleeding.

So I have no ide what this is.

I looked up implantation bleeding and miscarriages, and it doesn't fit EITHER one.

Could it be my post-partum bleeding? So late after the birth, and after a time where it stopped?

I have no clue what this could be and it's so annoying.

Help?