Can a female dog get pregnant not in heat?

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1) When does a mini pincher get in heat ( in months).
2) Can a female miniature pincher get pregnant while not in heat.

They come in heat from about 6 months.
No they cant get pregnant when they are not in heat.
No, the female goes into heat (the estrus cycle) while she is fertile so they can only get pregnant then. Also, females normally want nothing to do with a male when they are not in heat (they do not usually want to mate unless they are in heat).
The majority of female dogs go into heat for the first time around 6 months of age and the heat will last about 3 weeks so she needs to stay away from all unneutered males. The heat will occur a couple times a year.
You really should get the female spayed because you don’t want any litters and it also prevents certain types of cancers.
NO of coures
No, a female of any breed of dog cannot get pregnant when they are not ovulating. They also will not accept a male until that time. On average, females go in heat approximately every 6 months, however it isn’t uncommon for it to happen every 9 months either. If your female has no reason to be a breeding dog (for conformation, obedience, etc.) then she should be spayed. It will prevent cancer.
Instead of telling you how to raise your pet like these other people, let me just answer your question. No, a female canine cannot get pregnant when she is not in heat. You will be perfectly fine just keeping her away from males while she is in season. If you don’t want puppies, you’ll want to make sure to keep track of when she should be in heat as well and allow a little room for error on either side of the cycle to be sure, as many dogs have what is referred to as a "silent heat." That’s where she goes into heat, but it is light and she keeps herself clean and you can’t really tell she’s in heat at all. Don’t let her fool you. If there are males in the house then it will be a little trickier, consider a "belly band" for the males if that’s the case. It’s just a cloth sleeve you slip over the mid-section of the male so even if he tries he can’t get to her. It’s not full-proof so fairly consistent supervision is still recommended.
A note to all the spay/neuter happy gang, who believe everything they hear and give in to any conspiracy theory thrown their way, getting spayed of course can prevent certain types of cancers, but these cancers are less likely to happen than the hundreds of much worse complications of being spayed. Mind you, the list of negative outcomes of being spayed and neutered, is far longer than the positive outcomes, and the negative outcomes are far more likely to actually happen. If it can be avoided, spaying and neutering should not be done. Any other opinion is the result of a mainstream opinion from people who know little to nothing about dogs, let alone breeding them.