You can get prescribed anti nausea pills by your doctor if you need it
I never got morning sickness, but there is no set time of when it will stop, some ladies have it the whole way through their pregnancy and some only for the first trimester and some none at all
I'm 33 weeks, had it since the beginning. :-/
for me it stop at 25weeks came back off and on at 30-36
mine stopped at 14 weeks