Keep them separate in the house. Getting both fixed is really the only way.
The best way to get your male and female chihuahuas from marking their territory is to have them neutered.
The best way to stop your male pet from trying to mate with your female when you, or she does not want him to, is to move your male pet to a different room. Keep them separated for awhile until the male loses interest.
The female and male dog usually mate for at least 5 minutes, it is difficult to stop them once they have started mating especially after the ejaculation.
Taste bad
Family-time.
You can get the male dog neutered, this should stop him from urinating in the house as much as he did.
gets her reported on the web lol
No there is not a medication, but you can neuter him and he most likely will not want a female.
Unfortunately there's nothing you can do except for separating them.
u could either remove 1 of the females or purchase another male.
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If you are a male, use a condom. A female, Use a femidom. Or you can take pills to stop the pregnancy.