Suspect female. Leaving this here with another shot lit from the top next to the shot bottom lit.
I think image on the left is showing uterus externus and the one on the right is showing the tiny spermathecae under it.
This is my Grammostola pulchra that was 1.75" DLS prior to this molt. I'm not even sure if it is possible to determine their sex at this young an age, or not. If it is, based on what I see, I'm leaning towards it being a male, but I don't have much experience with this.