Hormones that a male dog can smell if female is pregnant?

How long does a female & a male dog stay tied up when they get together?

I have a 4 month old, german shepard/pitbull mix and I wanna know at what age can he get a female dog that is already in heat...

how many times with the male dog does it take to get my female pregnant?

My female shitzu is in heat and I didn't notice it until one morning (blood evrywhere) ! My male dog was trying to smell her ...

Can she get pregnant by a spay male dog

We have a male dog and a female dog and my female dog is in heat and they have gotten stuck quite a few times already. My mal...

My dog has been in heat and now she is fighting with her sister is she pregnant

do the dogs need to get stuck, in order to become pregnant?

I have a 2yr old male chihuauaha who is neutered and just got two more that are 8 weeks old. a female and male. my male is...

My parents have a male pomeranian/chihuahua puppy and an older female lab/cross and wish to get another pom/chi, would it be ...