Implantation bleeding? Feels too early.

Co

So firstly, I’m not 100% certain when I ovulated. I took ovulation tests on Saturday 3/3, AM and PM, and they were dark but not quite positive. I assumed I was too early but could I have been late, and actually ovulated Friday?

We BD’d on Wed/Th/Sun.

My digestion has been wrecked the last 2 days, and yesterday my nipples felt weirdly sore, and today I wiped and came back with a very faint pink.

Pics below. Could this be implantation bleeding? I know it’s a bit early regardless of which day I ovulated, but my period isn’t anywhere near due. So idk?

Here’s my tests from Saturday 3/3