Decreased movement

So at my 30 week scan I was told my placenta is aged, baby boy is getting adequate nutrients and growing nicely and wasn’t too concerned but will be monitoring my placenta and baby. All week I have been having really bad pelvic pain and pressure to the point I can barely walk or even change positions. Today however, I have noticed baby not move as much ( not like normal at least.) he moves maybe 1-2 times every few hours and normally I can feel him when I sleep but I didn’t when I was napping. I’ve also had period like cramps and pain off and on all day, but not really any contractions that I’ve noticed. I just at something sugary and drank some cold water in hopes I can get him a little more active. Should I be worried? I have no bleeding just increased discharge this week. Sorry if it’s too tmi just a FTM and worried.