Preterm labour or just painful braxton hicks?!?!

Hey ladies,

I am currently 17 weeks today and last night i was having painful cramps/contractions in my lower back that lasted a few seconds and come back every few minutes and stayed around for an hour or so before i went to bed (still with the pain) I tried Google and it said to drink water lay on your left side or get up and walk around etc now i did all of this and the pain never went away i also drink 2.5L of water a day so i couldnt have been dehydrated? Now today i have had period like cramps in my abdomen and i feel very tender around my belly button down.. this sound like pre term labour? I never had anything like this with my first pregnancy and i did have a full on back labour with my first as well... it did feel alot like the start if my son's labour

I also haven't felt baby move today, and ive felt baby moving since 11 weeks

**i have sent my midwife a message at 9am this morning, with no reply back from her .. it is now 10.30am should i give her a call? ?****

Update- thankyou ladies for the replies i really appreciate it!! i gave my midwife a call and she can get me in today at 12pm to check babies heart rate and do some tests, hopefully baby is fine and i can rest easy!!