Has anyone gotten BFN up until 19dpo?

I took a pregnancy test on Dec 15th, and it was negative.

According to this app I’m 5 days late and 19dpo and my period was supposed to start Dec 17th.

According to my other app I’m 8 days late and 17dpo and my period was supposed to start Dec 14th.

What im trying to get to is, am I out? Or is this still hope? There is sign of my period coming. Usually I’m very crampy, very moody, and crave chocolates. I haven’t tested since I got my negative, but I’ve had a lot of watery like discharge, an annoying dull pain on the left side of my uterus, but sometimes in the right side. (It’s never both sides at the same time tho.) I’ve been getting cramps/Charley horses in my calves, and I’ve been low on energy and just feeling tired. I don’t have any food aversions, my breasts aren’t sore, I don’t feel like I’m constantly hungry,

Honestly, I’m just scared to test because I feel like I’ve been trying forever, and it’s always such a struggle for me the next few days after a BFN.