Now what

Amanda • I`m 24 literally married my best friend of almost 10 years May 9th 2015. He has 2 boys 6 and 2 we have been TTC our first baby since March2015. I thought this would be easy as pie, ha I sure was wrong
AF was due the 7/22 I've never been this late so yesterday evening I had blood drawn and it came back negative. I know when I was ovulating (i was testing) I know Home tests can take a while to show BFP, but blood? I thought that was a pretty black and white kind of thing. Anyone ever test negative for blood but was actually pregnant? If not now what? Do I try to test when ovulating again and move on like normal?