Early mucus plug?

Heather

I checked my cervix tonight. It’s high and soft but the opening has what looks like a mucus plug. The other pic is from the evening before I ovulated. They look similar except for the mucus. Hoping it means I’m pregnant.

I am 12dpo, AF expected Thursday. BFN this morning.

Thoughts? Anyone know info about the cervix and mucus plug at 4 weeks?