For a frame of reference, I still wake up with horrible nausea. Today, 4:30 AM I said hello to my dinner again. Every pregnancy is different but take the nausea as a sign of a well-established pregnancy (in the words of my MW)
It's definitely not as bad, still get queasy quite often. The worst times for MS was probably 6 weeks to about 15 or 16 is when it became less frequent.