How long has my pregnant swordtail got left

[Sarahb28]

I noticed a couple of weeks ago that my swordtail was pregnant and I’ve been trying to work out when she’s due. She’s been showing signs according to what I’ve read but I’m not sure. The photos don’t show the Gravid spot as dark as it is.

 

[emeraldking]

This may still take a while.

 

[Sarahb28]

Do you think? How long do you think I’m looking at? Thanks for your response

 

[emeraldking]

Could still take 3 weeks if not longer... Her belly size is not at that stage yet.