Cramping when cleaning?

Katie • 29 years old , married 03/10/2018, became a mother on 11/19/2018 to a beautiful little boy ❤️

I’m 6 weeks 1 day and have had mild cramps since I found out I was pregnant at 4 weeks. No bleeding, doctor says it’s normal. Lately I have found that I have zero cramping when resting but when I get up and start doing housework the cramping starts again as does my nausea. It goes away when lying down and resting but quickly returns when I become active.... anyone else have this happen??