I don't consider myself a professional breeder. I wanted to breed my dogs one time just for the experience. Turns out trying to do birth control for 2 dogs that really love each other is very difficult. So now I've had 4 liters. I learned everything about breeding from youtube. I've been very lucky that I've been able to breed 15 puppies all very healthy.
This breeder hasn't written any updates yet, maybe ask them why?