for me it started at 8 weeks and stayed til my third month but i also didint kno i was pregos til it happened but like babypooh said everyone is diffrent
Everyone is different. Symptoms for me started about two weeks after conception, but it was sore breasts. Nausea doens't affect all women :)
It varies for people. I am 6 weeks pregnant and my nausea started about a week ago.