Labor soon?

I know there’s no real way to tell but I thought I would see if I could get someone who has experienced it before. This is my second baby and I’ve heard labor is a lot faster on average. With my first I never got to experience contractions or real labor because once my water broke they had to give me pictocin because I wasn’t having contractions. So I had my 36 week appointment yesterday and I’ve lost 3 pounds in one week. My pelvis is so sore I can barely walk. And I’ve been having this constant backache that won’t go away no matter what I do. I’ve had contractions but they aren’t consistent yet but they are painful. I know I can go into labor anytime really or my body can hold off until my due date which is still a little over 3 weeks away, but with all of these symptoms does it sound like labor is near rather than farther away? I know no one can say for absolute sureness, but I’m just looking for opinions. Thankx.