movements?

Please no bashing, and no hateful comments. First time mom here. I'm 28+4 and on Friday, my son was awake almost all day. Literally moved almost all day. Yesterday, I had way less movement throughout the day. He was still moving just not like before. And today, he's doing the same thing. Despite sugar and laying on my left side and things that usually perk him up. Should I call the OB or just wait it out since he was up all day Friday and he's just resting?