So I am not sure if I pulled a muscle or if this is normal for 39 weeks, but when I am walking or…

So I am not sure if I pulled a muscle or if this is normal for 39 weeks, but when I am walking or basically trying to lift my legs to say get in my car my pelvis the front part, basically where my public hair is, is just in so much pain, it's incredible, it definitely feels like a muscle pull, but I was also told it could be baby's head. Anyone else able to relate???