Stopped trying til the other day

So hubby & i have tried for almost 1 year and almost 6 months. We already have a daughter shes 7 now. I was okay with just the one but was getting poked by him for another & my daughter was constanly on my back about a sister or a brother. I finally said if it happens then okay but i didnt want to stress out about it. Fast foward in july i was diagnosed with state 3 kidney failure & my obgyn said be happy we have our girl & shes healthy so be done. I was sad for a bit but okay with it. Hubby & i dont have sex alot so there were times where i dont think about it. I started my week of ovulating & hubby started gettin fridky and i said i was in my fertile week & it wasnt a good idea . His response= i have faith everything will be fine and we had sex 2x during that week. All im thinking about is what the heck got it to him. Dont get me wrong i have faith that GOD will do what he seems fit, but theres a high chance that i wouldnt survive another pregancy due to my kidney function. Not trying to stress but shit!