I also experienced this and had most all of my morning sickness disappear around 7-8 weeks and was worried (I also had had a previous MC). I am 12 weeks now and just had a scan and baby is perfectly healthy, so I wouldn’t worry too much. Do you still have any other symptoms, i.e. tender breasts? If so I’d try not to worry.
If you're worried, always talk to your OB. But this can definitely be normal. I haven't had any morning sickness this time around, and very minimal last time.