When does morning sickness start?

Hey ladies. I was wondering when morning sickness typically starts? I would be about 5 weeks if I was pregnant, I like to try to wait until af is late and I'm due 10/13. I was just getting ready for work and a wave of nausea hit me suddenly. I had to put down everything I was doing and just focus on breathing. I've been doing pretty well this cycle not symptom spotting but that felt pretty real. I might poas tomorrow (10dpo). Now I don't know if I can wait:/