I got it bad at about 6 weeks
I usually get it pretty early maybe 3-4 weeks. Altho its not as severe that early as it gets in my 2nd & 3rd months. This pregnancy I started around 6 or 7 weeks and I still have it 12 wks 2 days. Praying its over soon.
I first had morning sickness at the start of my 5th week and still have it. I am now 15w2d. I never had morning sickness with my other 5 pregnancies so this is all I have to go off of.
For most women it starts around 6+ weeks. I noticed mine when I was 5 weeks pregnant and didn't know it.