Relieved but....

My husband and I have been tct for six months now and every month I get a BFN. We both went and got tests done and our results came back all normal. This is great news of course but I wonder why we haven't gotten pregnant yet. We are BDing almost every other day and always when I'm ovulating.  Sometimes I just wonder if I'm ever going to get my BFP.  Just feeling a little down right now... Still hopeful though.