As already said, every pregnancy is different. I had horrible M/S in my first pregnancy from about 4 weeks up until about 13-14 weeks. I had none in my pregnancy that ended in M/C, and with this pregnancy 9i'm only 4 weeks) I have had low grade nausea since 7DPO.

Hopefully your M/S is going away early because you are lucky. I would definitely go see your DR and request blood work or an ultrasound to give you some peace of mind.