Sciatica issues?

I'm 15 weeks and I started feeling pain in my right butt cheek, hip, knee, and inner groin area. I've been feeling pain in my tail bone for about two weeks. Is this the baby on my sciatic nerve? What did any of you do to make the pain lessen since I know it won't just go away... I even tried a yoga headstand to get the baby to move but not sure if it worked lol I've heard from friends their doctor made them go to physical therapy and gave them pain medicine. I'd rather deal with this without the two so any help ❤️