The answer is no.
Rabbits are induced ovuators. That means they have no heat cycle, but breeding them causes them to be in heat, which basically ensures that they will get pregnant almost every time. Their 'private part' may look darker red when they have reached an age when they are ready to breed, but not with all rabbits.
If your rabbit's genitalia is swollen, this is a sign of illness or injury. Look for other bad signs, and bring the rabbit to a "rabbit-savvy" vet as soon as possible. See the related questions below for info and links.
its in heat
She will start to swell.
If you want babies, Yes.
Female rabbits don't go into heat. Ovulation in rabbits is triggered by fornication, so they don't have a menstrual cycle.
No I`m sorry there`s not,just watch your dog`s private, when she starts to swell then she going in heat.
These are one of the cues that indicate a dog is in heat.
Dogs do not have periods. When a bitch goes into heat her teats may become enlarged.
the atoms inside your feet get bigger in heat
No, although it does expand with heat as do most substances.
I'm imagining you have a smaller dog. If they're comfortable together then it's pretty normal for a rabbit to try and do that. You can youtube search it and find many videos of things like that actually. Nothing out of the ordinary.
a rabbit comes on heat wen the female is taken to the male,so it can be mated as soon as u wish but it's advisable you let it rest to relieve it from stress for about one week
Sometimes the females vulva will swell before she starts menstruating. The average heat started in females sometime between 4 and 6 months of age and anytime after that at 6 months intervals. The height of the heat is at around 14 days and they can be in from start to finish for 28 or so days.