Will My Guppy Drop Her Fry Soon?

Hello, my guppy dropped her first batch of fry 24 days ago. From what I've been reading gestation period usually takes 21-28 days and one of the sign she's ready to drop off her fry is that she will have a boxy belly. My guppy looks like she's squared off and left me amused if she's too early preparing to have her babies again. Can anyone tell me if she will have her fry soon and how soon as I dont know when to move her to the breeding box as last time she gave birth on the main tank and I just manages to save few babies. Please see attached photo (sorry photo is a bit dark).

I can't see a photo?

oops sorry there you are..
Aw i cant believe it's upside down sorry.. Will try it again
Here's another pic

Hmm, she looks like she will drop soon.
If you want most/all the fry, move her into a breeding tank/trap and the fry should be born soon.

Any idea how soon? Thanks
Additional info: She didn't eat the whole day and most of the time she is very still and twitches like she's in pain..

I'm not very good at determining the time sorry.
I would say in the next few days to a week but I'm not completely sure sorry.

That's fine thank you i'll just keep an eye in her

She dropped the babies this morning 32 so far more to go

Aha. Lucky you with some new fry! 
I hope they all survive and bring you joy!