Girls, can you please tell me ?? I've been going to the bathroom very…

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 ??