Judging by the plump butt on one and the tail suck on the other id say they both very well be gravid(or ovulating/building.)

My lady went from build right into ovy so maybe your girls are doing the same.
Just remember after ovy they lose the thickness and then a couple weeks later(sometimes less) they shed and a month later(give or take) they lay.

Good luck and be patient! Those girls look like they wont be disappointing you!

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