Starting to feel discouraged

My husband and I have been trying to conceive for so long that I am on the verge of giving up. Supposed to test for pregnancy this week after my first round of clomid and I've pretty much decided that I am done trying for awhile if I get a BFN. I don't know want to go through this anymore, it is too much of an emotional drain and it takes a toll. It is starting to become my life and I don't want that. I just need to take a break.