No baby kicks :(

Hey ladies, this is my first pregnancy and I'm just worried. I'm 25 weeks 1 day today and normally he (it's a boy) would be VERY active and kick a lot and for the past few days he has hardly kicked at all. It is a drastic change from before. Constant kicks throughout the day to a few kicks the whole day. And so far today I've only felt him once.. I even try to lightly jiggle my tummy like my doctor does to provoke movement and he doesn't move.. Please tell me this is normal and I'm being a way too worried first time mom.. I don't want anything to be wrong with my son 😢