When will my Platy give birth?

[anttna]

Im pretty sure that my Hi-fin Platy is pregnant, i saw her being mated 3 weeks ago, shes got real fat but there doesnt seem to be much of a gravid spot. How long will it take before she give birth?

Also how long does it take a guppy till she gives birth?

PS My Sunset Platy finally let the male mate with her yesterday, they were the first fish we bought and that was 3 months ago, ive heard of playing hard to get but geees!! :?

 

[Fruitbat]

The gestation period for the Platy is about 4 weeks so give the ol' girl a little more time.
Gestation in guppies is about the same...4 weeks.

 

[PlatyLady]

and you will also know just by looking at them. Platies and guppies bellies get absolutely gigantic when they're ready to give birth. In my experience, the gravid spot has always been very visible, so watch for that too.

When they get so big that you swear they must be in pain from the stretching, watch them closely, and you might get lucky and see your fry being born.