When your female guppy is pregnant you can't tell by it's size. You have to look at it's gravid spot. Which is right behind their stomach and the tail. It's right around the butt of the guppy. It takes about a month for the babies to be born. Plus you can not stress out your the pregnant fish.
When their gravid spot darkens, and a lump forms under the gravid spot.
Well, since the females could be pregnant when you buy them, all male would be better.
Simple answer is no.
Yes, they can.
If your female guppy has been in a tank/container with a male since it reached maturity it will be gravid (pregnant). Give it time. The fry will come eventually
The female guppy will be very large and will have a gravid spot near her anus. But when she is ready to give birth she will be very still and huddling near the heater in your tank.
female guppies can produce 2-3 genaration in a year
The Gravid female will have the dark "gravid spot" in front of her vent. I can however assure you that if there has been a male in the same tank with a female guppy for any reasonable length of time she will be gravid.
there is not much difference but it is actually not called a fancy guppy its called a fancy tailed guppies because they have beautiful tails but beware if you have a male and female guppy or fancy tail guppy in the same tank the female will get pregnant and after the babies are born you must separate them or most of the babies will be eaten but beware the babies you can hardly see.
If the fry are small enough to be eaten by the female guppy then she will eat them. If your community tank is well planted and you have plenty of hidey holes that the fry could hide in but the other adult fish can't enter, then the fry would have a better chance of survival out of the breeding/fry tank. You could also buy another livebearer breeding trap they are very cheap. _______________________________________________________________________ Ya that right they are but you have to remember that what she said is true!
leave them in the tank for a while they will eventually
Yes
I believe that female guppies can store male sperm in their bodies until the environment is just right and then they will use it to become pregnant at will.