Not feeling moment/kicking... Trip to the doctor?

I’m 29 weeks and 4 days why do I not feel any kicking and moment?? I’m really starting to pay attention to it now because I remember with my son he was kicking and moving like crazy at this many weeks. I have felt my daughter move and kick very lightly a week or two ago but not recently. It’s scaring me because I haven’t felt her move or kick even with the lightest ones within a day or two. Also, why is her movement and kicks so light and barley noticeable? Should I make a trip to the doctor? What will they do when I get there?