Baby's movement

I'm worried about my sons movement. I'm a FTM and I'll be 24 weeks/ 6 months on Friday. Yesterday he was all over the place and he's been silent today. I asked my doctor last week at my appointment and she said I should start feeling more movement within the next couple weeks but I can't help but worry. Please someone give this momma some peace of mind. I have worried this entire pregnancy and I'm really trying not to. I just want my son to be happy and healthy.