Infertility

After 3 unsuccessful rounds of clomid and half way through my 4th I've hit rock bottom. Nobody told me how lonely and exhausting this journey is, how I have to look at my partners son who is his double every day and know I might never experience the getting to see a positive pregnancy test with him but yet some random girl on a drunken night did. I can't cry anymore, I feel worthless and like he'd be safer finding a girl who can give him the big family he wants because I'll never be able to :(