Am I pregnant?

Claire

I’m 14 DPO. Over the past week or so I’ve had headaches, dizziness, lower back pain and a bit of cramping. My CM is still clear after ovulating and there seems to be quite a bit of it. I’ve been feeling a bit nauseous at different times of the day and I’ve gone off food a bit. I usually have sore boobs when I’m coming up to my period but no sign of this yet. I did a test (cheap, pound shop)yesterday and it said negative. Did I test too early? What do you guys think?