Are you having contractions every 5 minutes or lesser? If yes then it is active labour and you should head to hospital. You can download the app ‘contractions timer’ (in mint green) to track your timing. Otherwise it could be just false contraction also known as braxton hicks, which your body is preparing for actual labour since you are nearing your due date too.
In my opinion if it's not consistently strong contractions then should b just normal Braxton hicks contractions. Meanwhile just continue to monitor the situation. U can also call up kkh to find out more info about when u should head down
For peace of mind can always go a$e. But i remember towards the end of the pregnancy, last few weeks im always having like want to poop or period cramps. Pressure on the V and butt.
your doctor might give u laxative safe for pregnancy. u may ask.