Does sound like early labour but if it’s your first baby it could take a couple days to pick up. Started like this for me with my first so I stopped recording them and tried to just do distracting things until I couldn’t ignore them! Good luck 😊
Mine was a bit like that but I also had it on and off for a few days. Something to keep your eye on. I stopped timing them because in the end I just knew it was time to get to the hospital! Xx