Hello I have a 5 month old female American Bully, I was to she should go into Heat around 6-7 months and then again around 12-13 months. During this time are there any differences she will go through leading up to that point?? Like will she show signs before the bleeding starts?? Or will I just notice blood one day and say oh she must be in heat?? I have 2 Male dogs as well one is 6 Months, and the other is 5 yrs which is my gfs dog, I understand I need to separate them from her to prevent her getting pregnant but do I need to make sure they aren't around each other as well for fighting for Alpha or am I over thinking it?? Hope you understand what I'm asking, and thanks in Advance for the assistance and guidance.