Concern

Amy • Mom to 4 beautiful girls. 3/3/10, 4/27/14, 4/8/17, 3/7/19.
So I woke up sometime throughout the night and then this morning both times on my back. Was so tired in the middle of the night I didn't really think about it so I didn't roll over on my side. This morning I'm slightly crampy and baby seems a bit less active. Am I just being paranoid or should I be concerned?