seven days late. today makes 3 neg test. my boobs hurt so bad I'm having a hard time convincing…

seven days late. today makes 3 neg test. my boobs hurt so bad I'm having a hard time convincing myself to get in the shower. the thought of the water hitting them...ouch. not to mention i got 10 hours of sleep last night and I still feel like I've been up all night. back hurts. Either I'm preggers or have mono. Thats what I've decided. No medical degree just personal thoughts.