Ay, morning sickness talaga ang worst! From what I've seen with my mum friends, usually nag-improve siya around weeks 12-14, pero honestly some of us felt better earlier pa, around week 10, and iba naman grabe til second trimester na talaga. Ang iyong body lang kung kailan, kaya wag mag-worry kung mas matagal pa, every pregnancy is different, and it will pass, promise!