Not my month?

Sara • 23. Married. TTC baby #1
So on Thursday morning, I took a test at 8:30 am and got a faint line (10 DPO) - really excited so I showed my hubby and he saw it too. (It showed up pink within the first 60 seconds on a first response). Well this morning I took another test at 6:30 am (13 DPO) and it was negative. AF is due on the 11th and I haven't had any signs of her coming. Not even the usual back cramps or brownish discharge. Just feeling a little discouraged 😞