Bed creaking under me. Wah!

Frost
So I had to move our bed over a few inches to make room for the bassinet.  
I should have let my husband do it because that fucker is heavy.
Anyways, now I'm lying in bed and every time I roll over (read: heave my 38 week belly over) the bed creaks and groans.  
I must have shifted the support or something, but still, I feel like my bed is telling me, "You're faaaaaaaaat." fifteen times a night.  
I thought we were friends, bed, I don't need this from you.