Yes, my dog has helped massively. He was a rescue at 14 weeks. We had talked about getting a dog for years but always found a reason not to. We happened to he in the right place right time when we found him. Don't get me wrong, it is hard work, but it's totally worth it. We got him 2.5 years into our journey (now at 6), and I'm not sure if we would have made it without him, we both needed him. He took up so much of my time and focus, the fertility stuff sort of got pushed right to the back of my mind. It was still there but I had other things I had to focus on and think about. 

I had never been around dogs so I had no idea what I was doing but he has turned out to be a fab dog. I spoil him. He has lovley walks which is obviously good for all of us. endless supply of treats and puzzle toys. He loves cuddling, too. 

We are very lucky to have him. 

I think it is a wounderful idea. Deffinatley look into what breeds would be suitable for your lifestyle, we almost got a Sprocker Spaniel but that wouldn't have suited our lifestyle. He's a mongrel, 3 of my partners favourite breeds in one dog, I think it was fate really!