Platys - Pregnant Or Constipated?

Hello
I'd really like some opinions here. Our orange platy Tango, is looking what I assume to be heavily pregnant, but I wanted to just be cautious and check with you all to see if you all think she's pregnant, or she's something less predictable like constipated.
I then figured whilst I was at it I'd ask about our other platys too Hope that's ok!


Tango


Sunset (with Melba in the background if anyone's feeling keen on opinions)

I gave up trying to take photos of the other one we wonder about.
I remember the advice re barrel shape but since one of them gave birth when we didn't realise she was pregnant at all, we've lost our certainty slightly...!

Thanks!!

Edit: Just to note, this is a photo of Tango a month ago...

if you have males mixed with females then i would sat pregnant. even if they were mixed at the shop you got them from it could be pregnant. there is a period of time (cant remember what it is though ) that any fertile female that has been in contact with a fertile male can become pregnant as they can store the sperm....

Tango has been eating quite well. She may also be carrying fry but does not look close to a drop to me.

id say a week or two left for tango and sunset is about a week or less