I’m nervous 😕

So I was suppose to start my period on April 22 and it didn’t come, on April 28 and 29 a couple times when I wiped it was a little light brown and sticky. I thought it might be old blood and the start of my period. But now it’s May 8th and still no period. I took a test on April 29th and it was negative.

I’m nervous cuz I bought another test but I’m so sick of taking tests and they come up negative. It’s heartbreaking every time. We have been trying for 2 years.

Any thoughts?