My neutered dog mated. Can he still get another dog pregnant?

A recently neutered male dog may potentially impregnate a receptive female for as long as one month after surgery. Sperm is produced in the testicles then mixes with seminal fluid in the prostate. It is possible for those sperm to survive for as long as a month after the testes, which replenish the supply, are removed. Additionally, testosterone levels are still high in the male and he will want mate with a receptive female until those levels decline.

If he was neutered a long time ago this is probably a dominant behavior not related to the sex hormones. If he was castrated recently he could have made her pregnant as the sperm may survive in various storage areas of the male reproduction tract for up to 6 weeks after neutering. Please post again on the forum if you would like to discuss it further. I hope my answer was helpful.

Hello. It is tough to tell without an x-ray or ultrasound exam. It is very possible that the male still had viable sperm in his reproductive tract ( sperm can remain viable for 3-4 weeks in the accessory sex glands of a recently neutered male ). It could be a false pregnancy, but more likely she did become pregnant from the recently neutered male dog. Thanks for using Petco Pet Education Center, formerly Petcoach.

Neutering doesn't remove all sexual behaviors, and male dogs who are neutered can still try to mate with females in heat. The good news is there is no way your female can get pregnant. The best way to stop that behavior from Jeeps is to have your female spayed. I hope this helps!

Hello and thank you for reaching out to Petco Pet Education Center, formerly Petcoach. No, a neutered male cat cannot impregnant a female cat. Neutered males have no testicles and therefore no sperm. If you have a female cat that has become pregnant, she must have been mated by another, intact male cat. I hope this is helpful!

Neutered males can display erections and ejaculate just like intact males. They may mount in a display of dominance or can still mount to breed in the presence of an intact and receptive female. Correct the behavior immediately (even though no litters will come of it) and distract or separate him completely from the female until she is no longer in heat. Consider having your female spayed in the near future.

The mounting is normal and they could even ‘lock’ but your male cannot get Hazel pregnant. I would however recommend to separate them when Haze comes into heat to make sure neither dog is injured trying to mate. I hope this helps.