Pregnant?

I'm very new to this. We have been ttc for almost 1 year; still nothing. I'm not even sure if i ovulate regularly (I know I need to take an ovulation test). My last pd. ended on Sunday Oct 4th. My next pd. is supposed to be Monday Oct 26th. I've been feeling bloated, nauseous, moody, sensitive and tired for the past 2 weeks which isn't normal for me. Took a digital test 2 days ago and it was negative. I feel like I'm going crazy, any advice or suggestions?