FTM labor questions

Hi ladies! I'm a FTM and I'm wondering what were your signs of early labor?

I'm currently 37 weeks and 2 days. Throughout the day I've had contractions off and on, lots of back pain, my stomach has dropped significantly in the past few days, lots of pelvic pressure and anytime I move a certain way putting pressure on my stomach I start having contractions. I also just feel off. Just different then I normally do. My little one is still moving but not nearly as much as she normally does. Could any of these things mean that labor is coming soon?

I had some preterm labor problems at 34 weeks but I honestly thought I was having poop pains so I feel I'm not the best judge at these things lol