guppy an molly gender

i think so much work went into getting the colourful male guppies, that the females were just left aside. but now that fish breeders are looking for challenges, they are coming round to breeding some colourful females. im hoping to breed some lovely colourful females from the ones i have - one has a baby blue tail; two others have orange on bottom, red on top; and one is a rather dull one, with the general colouration of female guppies. they were all showing their gravid spot when i bought them (which is unfortunate because i have a lovely male i wanted to breed them with), so i should have some young soon. the gravid spots are getting darker as days go by.
 
my female doesn't seem to have a gravid spot. she is only two different colors-reddish orange on the tail half and pale yellow on the front half. I can see through her body a little on the lighter side, and she has a dark spot inside but no external coloring. what does that mean? she does seen to be getting fat, though, like she's pregnant.
 
the gravid spot is on the inside of the female, so that is what you are seeing. a gravid spot is an indicator that the female livebearer is pregnant, so if there is that spot...then yours is pregnant.
 
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