No, I don't think it is anything to worry about. They get 'heavy' in there and start to drop. You are moving toward the third trimester and by the end, there is a lot of pressure toward their exit path! :>) Is this your first child? Oh, and do you see your doctor every month now? Once you hit third trimester, you will see them every two weeks in preparation for birth. Be sure to ask what THEY think about baby down low already. But I felt that way too at 30 weeks.
My baby is low again in second pregnancy they move all the time as ur only 30 weeks as long as no blood and no gush of fluid ur fine they told me when was checked at 27 weeks and I’m now 31 week 1 day