21 weeks - experience pain at the back spine area

Hello, I have been having right lower tummy pressure all the way downwards into the right inner thigh bone. Sometimes pressure right above my pubic bone area. I feel like all that are normal due to baby growing. However, I have been having tailbone pain radiating upwards to my spine. It’s more of pain instead of pressure in my spine now. Is this normal? I took epidural for my first pregnancy is this the side effects of it? Told my gynae about the tailbone pain and she said it’s normal just cushion it while sitting down to lessen the pain.