Late period, constant negatives

I’m so frustrated. My period has been a couple days late and I’ve taken four test, each negative. I doubt it’s stress related because this month my husband and I haven’t really focused on trying. We had sex three times during my ovulation period and we just haven’t really thought about “oh maybe I am pregnant” until my period was late. With my first pregnancy, I got a positive the day I missed my period. My period always starts when it’s supposed to. It’s always scary regular 😂 I haven’t gotten any faint lines or any signs. Can I still be pregnant?