Feel like giving up

I have taken a few ovulation tests this week and I swore I was ovulating today. I had the pain and all. I took a test this morning and the test box line wasn't as dark as I hoped it would be. I came home from work feeling bloated a little crampy took another test and the line still wasn't dark enough. I am scared I missed when I was ovulating. My husband and I have BD Saturday,Monday and I am hoping tonight. I am getting discouraged and feel like just giving up.