Aww mama, I totally understand the worry, lagi kaming nag-aalala ng mga first-time moms with every little change! Pero honestly, it's pretty normal na may days na parang medyo tahimik lang ang baby, especially if you've been busy or stressed din kaya hindi mo napapansin ang movements as much. That said, since you're noticing a real difference from his usual pattern, I'd suggest mag-message agad sa OB mo para sa peace of mind, hindi naman masama mag-check, at that's what they're there for! A few of us tried the kick counting trick din (lie down on your left side for an hour and count), at if you're getting less than 10 movements in that time, that's when to call the doc right away.