beachbody, fitbit and pregnancy

Hey, everyone! I recently found out I'm pregnant, I'm 4 weeks today. Has anyone had fitbit while pregnant? If so, did it help in any way? Like tracking things and what not? also, I have beach body and have been actively working out since January and lost around 17lbs. What work outs besides the pregnancy ones do you suggest? My boyfriend and I have been doing 21 day fix the whole time, but i was wondering if there was anything else that's okay to do while pregnant?