Late period

Kaley

So my period is 19 days late now.

•I’m always tired

•Heartburn 24/7

•Nauseas all the time

•My legs have suddenly started cramping for no reason

•My entire arms are sore (both)

•Headaches all the time

And so much more tbh but all my tests are BFN except 1. But I feel like it’s a false positive because all the others after it were negative. I’m losing my mind. What can I do to make my period start?