One week ago I had my 20 week anatomy scan, everything was measuring beautifully average and he was healthy...

I started really feeling him around 18 weeks and he was always so active during certain times of my day and positions I was in.

I'm now almost 21 weeks and I haven't felt him as much as I was. I still feel him, which is so reassuring, but his movements have slowed significantly and not during his regular times.

I've had no cramping besides standard growing pains. I've had no bleeding, spotting, or discharge.

Is there anything that I need to be concerned about?