Devastated

I really thought this was our month. I've felt completely different this month and thought for sure I'd be getting that BFP!! Was really hoping AF wouldn't show & she did this morning. I know 5 months TTC isn't that long but each month that it doesn't happen it's like I lose a little piece of myself. I can't take the disappointment. I wonder what's wrong me. Something so natural and I can't seem to do it. I'm not giving up hope but this is so hard. I know a lot of you can relate.