Please Respond! (Tmi)

I'm 10dpo, my breasts are very sore on the armpit sides of them, I have an increased appetite but after I eat I feel nauseated. I woke up with a migraine this morning, ever since ovulation I've had milky lotion like CM that will stretch between my fingers, today there's even more CM like that. My period is due in 4 days. The only symptom I usually get before AF is cramping which I am experiencing. I took a hpt this morning, BFN! Not even a faint line! I'm loosing hope, I'm getting upset and frustrated! My body feels different, after a BFN I'm really hoping AF doesn't show! I'm going to test again in 2 days. I had a 3 day dip in my chart 7DPO, 8DPO and 9DPO and today at 10DPO, a rise. What's going on with my temperamental body? Am I out?