i agree with the others... if your health providers arent overly worried then i dont think you should worry...
that said i know i would be worried - bc that's how i am. so i would spk to middy/ob/gp about it and then go for a wellbeing scan if they recommended it after our chat. it cant hurt and it may put your mind at ease.
but as someone who is at a distance i seriously dont think yuo need to be worried.
best of luck!

ps now that i see you are 39 wks... i would say dont go for the scan.. you will meet baby soon enough in any case! try to relax and enjoy these few days... (assume you are feeling mvts etc)