[Tashasmom]

I had a mini pin that I got as a pet but she had been bred before. when Tasha had her litter she was fine..but jersey had her's 3 weeks later..One of those pups was a cleft pallet pup. Tyra would try to steal him but she would also try to attack the other pups so i had to keep them seperated..but what she did was in the place of the pup she stole a sock and nursed the sock for what felt like forever lol..but she left the others alone
I'd say don't breed her this heat. She needs time to adjust to her new home. If she continues to show aggression past her being in heat and is settled then I would never breed her because she could just be an aggressive dog..and therefore not a good one to breed.
If this were me. I honestly wouldn't breed her period not knowing her full history.
But if you feel you want to breed her..def don't do it this heat. She isn't calm and settled..and in order for her to have a good pg and nice calm pups she needs to be that herself.
Good luck. I hope i've been of some help either way whatever you decide that is best for you and your girl I hope it all works out.