Does bouncing on exercise ball help intensify/regulate contractions?

I started having contractions at 6:40 pm and they went on till 11:30 pm they eventually got where it happened every 50 seconds but not the same time apart so I told my husband to sleep and if they get worse we will head to the hospital. They eventually stopped (the cramping didn't though) but woke up this morning and the cycle is beginning again. I am 40 weeks and 4 days today.

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