early labour ?

hello everyone , hoping someone can give me some answers , this is my 3rd baby but i’ve been induced twice so don’t actually know what it feels like to go into ‘ labour on my own ’ !

I’m 35 weeks tomorrow and I woke up this morning to tightenings at 3am , i had the shivers and also sorry TMI i had loose bowels and I didn’t feel well ! I’ve had tightenings since 3am and still have them now (6pm ) could it be the start of labour ?

I’m not too sure if their just braxton hicks because they haven’t gotten more painful , it’s just that my belly goes all hard and a slight period pain type but my back has been hurting since 3am also , i’ve felt ok in myself today except for my tightenings and tired haha !

Wondering if anyone has had a similar situation and ended up in labour or was it just false labour ?

My belly goes hard more towards the top so after my bellybutton in a way it’s from my belly bottom upwards that goes tight!

Thankyou !