Simple advice

I'm at 5dpo and I have one sore nipple and slight cramping(some moments worst than others). Still with egg white CM. Extremely emotional, fatigued and nauseous. I keep sayin "oh no it would be too easy if I were pregnant this time around" ...but am I just waving off the inevitable. It's the one sore nipple that's throwing me for a loop. ? I just need some friendly insight, this will be our 3rd cycle of trying.