Faint Line on Pregnancy Test. How long do you keep testing?

So, I’ve never tested early, like before my period was due. I would wait for period or test a few days after it was due if it still didn’t come. My period is due in 2 days. Husband and I had sex last night and when I’m this close to starting my period, sex usually jumps starts the flow. But this morning when I woke up, I didn’t have my period still which is super strange for me. So, on a whim I broke my own unwritten rule and took a test. I had a faint line for positive. Not like vvvvf just faint. So, now what? Do I keep testing every other day? Do I consider that my sign?