When To Test?

I'm fairly new to the TTC Community & this is our first attempt at trying. So here's some info: we had unprotected sex on September 30th which was my ovulation day, and I know it's impossible but the next day i just... FELT pregnant. My next period isn't due until the 14th or 15th (it's usually right on time or a day late). About 7 days later I started getting acne & really bad fatigue. I can't get enough sleep. I also noticed today that I'm extremely nauseous & my nipples are slightly sensitive (which is unusual for me). I was thinking about testing on Monday. Is that too soon? Or should I wait to aw if AF shows up?