Late period HELPPPPP


So my period is late af. I’ve been under a lot of stress however I’m also trying to get pregnant. I went to the doc 2 weeks ago and that’s when I realized I was late by 3 days and they took a urine test me and came back negative. I took another one on Tuesday and same thing negative. It’s about to be August 1 and I missed my period. Idk what’s going on. Has anyone else been through this? I’ve been extremely emotional. I’ve been peeing excessively and been cramping alot like if I had my period, but without the blooood. HELPPP LOL