I really don't want my heartbroken again.

Okay so today is August 2, 2016 I was suppose to get my period July 21, 2016 but no af, that makes me 12 days late. My husband & I did not baby danced that much this month cause we were so busy with work, school, etc. so here I am CD 43 and still nothing. I have not tested because I am terrifed that it will come out negative , we have been TTC for 9 months already and June wasn't a good month for us. I was 9 days late last time and I just don't wanna get my hopes up. Any advice ladies?