Hi there I wold like a little help sexing my pacman. I think female but my partner isn't as sure as I am.

She is 3-5 years old and was told from the previous owner that it was a male but he never called.
I have checked all four feet and there are no black "lumps" between her toes
Her throat is white with a good amount of black also.
I have managed to get her to call but only after 5-10 minutes of her hearing a male call via youtube.
Even then it was only for a few seconds and no more calling after that.

Opinions would be greatly appreciated thanks!