Anyone keep track of their cervix and what it means?

I'm new to this.

But I just checked my cervix and it's definitely high but it feels firm. I tried looking it up on Google but it didn't really give me much. All it said was low and firm - period and high and soft - pregnancy but didn't say anything about high and firm.

Does anyone know anything about it?

What could it mean?

I had a tiny bit of spotting also a couple days ago and it was brown but since that little bit I've had nothing. Not even when I wipe.

I thought it was my period, but nothing else has happened in 2 days.

Could it be implantation?

Is it possible for your cervix to be firm in early pregnancy?

What're y'all thoughts? I'm super confused on what's going on with my body..

Note;

I just had a baby 7 weeks ago and have not had my first period yet so I'm not sure when I'm supposed to have one. And no I'm not interesting in unsolicited advise on how I just had a baby and shouldn't worry about getting pregnant so fast. Please only comment if it's in regards to the questions I had mentioned above ^^^ TIA!