28weeks & lack of movement!

Aby
So I'm 28w+4. I had an apt 4 days ago exactly when I hit 28 weeks and everything was fine! Since then I have felt a significant lack of movement from my baby! Before I didn't kick count becuase firstly the dr said it doesn't matter before 28 weeks plus she moved pretty much all the time (except when I was at work and active) and I wouldn't keep up with her kicks! However now I can count 10 kicks in one whole day and that be it! What should I do??