Here's hoping....💁

I forgot to record my cycle last month on glow so I don't know if that would affect the accuracy of this months period (as far as seeing when it should come on glow) but I'm a week late now, I've been checking my cervix and it's definitely closed with lots of creamy, not sticky cm, I'm staring at my third test this week but still BFN! Idk what's going on. I usually know when my periods coming, I get sore breast and cramping but I literally felt nothing all month, my nipples hurt for like a day this week and that was it. I've felt some slight pain at the top of my stomach but not cramps, these were like shooting pain, but for the most part that's it. Oh yea and I think it was last Monday, when I woke up I was super dizzy and slightly nauseous, and that lasted for like 5 hours. That has never happened to me before.....hopefully this is it but idk since the test keep coming back negative. I'm really trying but for the life of me I cannot remember when my cycle was last month. I just want to know......