I had it from almost bang on the dot of six weeks (got my first taste of it the morning I had my six week ultrasound). Then it went pretty much constantly until 13 weeks. I've had a couple of episodes of feeling nauseous since but this seems to occur mainly when I am tired which happens a lot lately.

Like someone else said, the smells were the worst. Everything I was using then (soap, deodorant, shampoo) I've had to swap because the smell of it just reminds me of feeling sick. Ha!