I am noticing some bigger teets on my girl and I fear there may be an accidental pregnancy. Its only been a little over a month since she started her season. I kept them separate save for a few walks together and occasional potty breaks to the yard. My boy did try to constantly hump her but they never tied. I suppose a tie theorectically couldve happened while I was at work, but each where in their separate crates, which werent touching. What are the odds of a pregnancy even happening without a tie? am i overreacting to whats just growing/changing body of a growing dog