With our first i started around 7/8 weeks, and continued until about 26 weeks lol, but it wasnt anything major, literally able to time it everyday to once at around 1:30pm lol, then that was it. With Izzie, it was more awkward, i felt ill from about 10 weeks every morning, but quite badly. Then with the last, Kabe, omg lol, from about 16 weeks (me and my big mouth moaning i hadnt got any lol) i was ill from around 8am at morning until about 10pm at night, backards and forwards alll day, it was awful lol, i was even still being sick during labour with him, i had it until i had him (born at 29+6 weeks)