Idk What to think anymore

Cassandra
According to glow I should have gotten my period on the 22 and last month I got my period on the 22. Still no aunt flow and hoping and praying that she don't Show. I still am getting negative pregnancy test. I have been feeling nausea and lower back pains and some tiny cramping here and there. Boobs have been sore and have been getting dizzy spells and really bad head ach and getting tired really fast for 2 weeks off and on. Has anyone been in the same boat and been pregnant and test at home with negative readings I think I want to do a blood test what y'all think. Been trying for 8 month now someone please help