Yet again a negative test

I am so tired of seeing negative tests…. We’re on 5 months of trying for our first baby together. I have 4 kids with a previous partner who passed away when our youngest was 5 months old. My new partner has stepped up and taken on my 4 children as his own but he has non of his own and we decided just to have 1 together and that will complete our family. He is incredible and honestly, my fiancé who passed was a really abusive partner and not an involved dad. We were together 8 years before he passed and I can honestly say my current partner has already taken care of our children more than Their birth dad ever did. I just want to be able to give him a child of his own that he so badly wants (and I want) but I feel like it’s never going to happen.