Girls, can you please tell me?

Girls, can you please tell me ?? I've been going to the bathroom very often (a lot) for a couple of days. I understand that I'm going more than usual, today my lower back started hurting, and there's no stomach pain, but I feel like it's related to bowel movements, lower back pain, and milk discharge. How quickly did contractions start after pre-labor symptoms? When did we go into labor? I really want to ??