Really confused..... can anyone relate?

Whitney • Married Momma of 3 kiddos 2👼🏻 and pregnant with our 🎀💕🌈 👶🏻

So long story short..... thought I was pregnant, HCG keeps going up ( not doubling but going up) had brown discharge a bit of spotting nothing else. Have all the pregnant symptoms, BUT today I go get my ultrasound and they said my uterus is empty and I don’t have an ectopic but do have a cyst on my ovary. WTH is up? Has anyone been through this? I’m so confused right now. They did bloodwork but I’m scared it’s cancer. Help!