About to be 34 weeks read/comment

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I'll be 34 weeks tomorrow and I usually get Braxton hicks contractions everyday but never to close to each other. But the past 3 days I been getting them and getting period like cramps. Well today I still have the same cramping and I'm noticing the contractions are close together like 3 mins apart... I don't know if these are real contractions or BH ones??? Help ? Comments.