I think I'm looking to hard

I'm 13 dpo so I feel like if I was prego the lines would be getting darker by now. I feel like I'm looking to hard because I want  this to bad. We have been ttc for 2 years now. I had a mc at 5 wks in February. And this is my first normal cycle since. If I look hard enough I'm convinced that a see something. But I think it's time to face the facts its negative, try again next month.....