Body Pillow - When to get one?

Ladies, at what point did you decide to get a body pillow to help you sleep? What trimester were you, how many weeks, why did you get one, which one did you get?

I usually have no problem sleeping at all and lately have been waking up nonstop and can’t get comfortable. I’m only 5 weeks and think my husband would think I’m crazy for getting one so early on.