Sciatic Nerve Issues?

Johanna • Pregnant with our first! Hubby and I are super excited!
Anyone having sciatic nerve pain? I didn't expect to have any issues like this until later in pregnancy when I gained some weight. I'm 10 weeks and it's gotten worse over the past week or so. Sharp pain in the middle of my left butt cheek. After walking for a while I can feel it shoot down my thigh. It really hurts and if I move just right it's a terrible, sharp, shooting pain in my butt... Literally lol. Anyone else dealing with this? The nurse said to use a heating of and take Tylenol. Hoping it goes away.