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If baby rats are not separated (males and females) around 5 or 6 weeks, it is possible for the females to become pregnant. It is also not recommended to breed a female until it is about 4 months old.

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17y ago

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If a rat is bought in Dec how long will it be till a rat is preganet?

Rats can get pregnant as young as 5 weeks of age and if they have been in contact with a rat of the opposite sex, they can become pregnant within minutes. A rat's pregnancy lasts for approximately 21 days.


How long does it take for a male rat to pregnant a female rat?

If the male is considered good enough by the female and she allows him close to her right away, male rats only take 5 seconds to mount a female and finish the job. The chances of him getting her pregnant are very high, even from only one mating session. From meeting to parting ways, it can take a minimum of 7 seconds for a female rat to become pregnant by a male. And you thought YOUR sex life sucked.


Gestation period of rat?

A brown rat will be pregnant for around 21 days. A Polynesian rat will be pregnant for 21-24 days.


Can a mouse get a rat pregnant?

Not before the rat eats the mouse.


Pregnat rat has how many kids?

A pregnant rat has up to about 20 baby rats.


Will a rat nest if there is already a rat there?

Usually when they make a donut shaped nest they are pregnant


When does a rat stop going into heat?

When it is pregnant or has been desexed.


Can a male rat get a female mouse pregnant?

No. Not the same species.


Is your rat pregnant cause shes nesting an starting to get nipples?

If your rat is nesting and starting to get nipples, she may be pregnant, but it is possible that she is having a 'phantom pregnancy' where a rat show the signs of being pregnant but doesn't give birth to offspring.


How old does a rat have to be to get pregnant?

I have three pregnant rats. They are about 8 months old and 3-4 weeks along. They got pregnant as soon as we got the male and he was much young. I'm sure they could have gotten pregnant a lot younger. I know this wasn't a straight forward answer but this is my first experience allowing them to breed. They are great pets...I love them.


What is the age requirement of a rat catcher?

In the Middle Ages there were no age requirements. Most child by age 7 were working and some were rat catchers.


How old does a male rat have to be to fertilize a female rat?

rats are mature at a month and a half of age