Pain in leg

Alexis

I am 27 weeks with my first child. I have been having pains in my left leg just below the butt area for about 2 weeks now. It usually gets worse when I lay on my left side. Tonight it is definitely worse. Is baby on a nerve? What I can do to fix this? I just want to sleep but every way I lay my leg is throbbing. I took a bath and relaxed earlier today and it didnt help and took a tylenol not long ago for a severe headache I have been having and nothing seems to be helping