Giving up

My husband and I have ttc for the last 2 years and have done 5 IUIs during this time. Tuesday is the day I go in for my bloodwork for the last one that I'll be able to while I'm in the military. Unfortunately based on the at home test I took this morning I don't have high hopes about it. We can't afford fertility treatments outside of the military and I don't ovulate with medication so if this doesn't work then it's our last chance gone. I'm starting to think that this is the universe telling me I'm not meant to be a mother. And it's just getting so hard to stay positive or hopeful.