Hi Olive and welcome to YT...you can learn a lot here so don't be discouraged...people are very passionate about the breed and some can tend to come off a little "rough around the edges".
I would definitely get back with the breeder you got her from...if she's ethical and an experienced breeder, maybe you can use her as a mentor. There are many genetic tests, etc. that need to be done before you breed but first, you should now her exact weight as she is now. Has she had any vet visits since you've had her...they should have told you her weight or put it on her records which they usually provide to you.
Needless to say, and as many have mentioned in previous posts, there is a LOT of research that should be done before proceeding.
Good Luck in whatever you decide to do. I wish you the best!
