Decrease in Movement

My baby has gotten it's name Wiggles because baby moves a lot I mean alot but about two days now it seems the movement have been less and I felt the baby here and there hiccups but very lightly . It has response by laying down on my side drinking cold water ... But theres time I'm in a position where I know baby will kick and doesn't . Husband is out of town coming home on Friday afternoon and I'm alone with my two boys. What would be a concerned