I’m due the same date and I have exactly the same symptoms. I get very bad period pains, sometimes that last all day, and other days not as much. It’s very on and off and there’s always the sensation of needing to relive bowels. I did some research and it’s called dilating pains/ pressure pains. It’s basically early stages of labour that can occur for days! I presume it’s the body getting ready for all the changes to come
I have been having the same symptoms for a couple of days now.. it‘s difficult because we have no clue knowing when these babies are actually coming. But I would also say it‘s our bodies getting ready xx
It could be your body getting ready, night time is a pretty popular time for labour to start too but I wouldn’t be disheartened if nothing happens tonight it could take a while x