late period 😤

My period is late by 3 days and I've been having symptoms of my period but it won't come on 😖m tired of feeling shitty! Last had unprotected sex march 12th and we have been trying for a 👶🏽 I took a test today but not with morning pee and came back negative and I think I saw a line but I'm not sure so I'm calling it negative! Did I test to early? Could I be pregnant? This waiting game sucks 😩