Tailbone Pain!

Hey ladies! I am 16 weeks and 2 days. For the last 2 days I have been having a lot of pain when sitting in hard chairs. Even comfy chairs hurt me after a while. The pain is always right in my tailbone and isn't getting any better. I've tried stretching but it dosent seem to help any. Anyone else experience this early on? I was thinking this type of pain would be closer to the end when baby is bigger with less room.