Recommendations for pregnancy pillow

I’m at 17 weeks and already showing a bump. Had an awful first trimester with lots of staying in bed. Did not really exercise as I was feeling uncomfortable. Currently experiencing pain in my tailbone that even walking and sitting upright are uncomfortable. Any recommendations for pregnancy pillow and/or seat pillow will be great - hopefully it can be used post-partum as well 🙏🏼 #firsttimemom