symptoms before bfp?

ok so im definitely NOT making these up, however im bot sure if theyre due to pregnancy or if my bodys just acting weird this month. soo 
•waves of nausea
•cramping every day since Ovulation 
•Lower back ache
•creamy cm since ovulation
•nervous stomach
•extreme thirst!
i tested at 8dpo  for fun and got a bfn but it was still early so has anyone had these symptoms before their bfp?