every single morning since before I found out I was pregnant so I would say around 4 weeks
About 8 weeks with my first and about 10 weeks with my second. Second baby was really light nausea
I got it severely from 6 weeks until 13 weeks vomiting horribly up to 30 times a day at worst (I was on iv fluids for a week 24/7) I'm 23 weeks and I vomit a couple times a week still now so not too bad!
mine started at 6 weeks and it was hell until about 14 weeks im 19 weeks now and its not that bad anymore.
Both are girls. I was sick the whole time with my first, with my second so far it subsided at 20 weeks.
3 weeks til now but its all day sickness and I am on medication