Not sure what to think

Glow says af is due tomorrow but I worked it out to be due on Sunday I took a test on Monday as glow told me to and it came back negative so maybe it was too early to test the past week I have been having symptoms of headaches cramps but not as sharp as u would normally get back pain tiredness bloated feeling bit gassy feeling hungry but not actually wanting to eat then all of a sudden just pig out waking during the night to nip to the loo which is not like me  and for the past 2-3 days been feeling nauseous my cp is high closed and starting to get a lil softer I think I ovulated on 26/3 so that would make me 11dpo is af right around the corner or could I pregnant please help going out of my mind