Still no BFP... 😐

Girlies, I've tested twice. Once last night, once around 7:30 pm today. Both came out negative. Still late on AF, but no positives yet! I'm cramping like I'm gonna start AF soon, but still no blood, it's been like this since the 1st of this month. How long do I need to wait to test again? Unless AF just decides to come super late, which isn't normal for me. Opinions? Thanks! 👍🏼😅