DD#1 vomitted EVERY morning for the first couple of months (was a PITA when walking to school) bt wasn't 'sick'
DD#2 nausea from about 6 weeks for the first tri maybe a bit beyond
DD#3 Nausea from almost 6 weeks for the first tri and a bit beyond
DD#4 Nausea from 6 weeks for the frist tri and a bit beyond
DS#1 nausea from BFP to beginning of 2nd tri (not sure if that is because the pregnancy ended early). Vomitting about once a day from 7 weeks to about 11 weeks.

This pregnancy is a bit of a mix.... nausea from BFP worsening at 5 weeks but comes and goes... *shrugs*