Am I about to start laboring?

At 3am this morning I woke up from a bad, what I’m assuming, contraction. The pain started in my back then went to my waist, then it actually traveled to my thighs and knees. Tried changing positions, didnt work. Last for a couple of minutes. I was able to go back to sleep after. This morning I’ve had what I think is Braxton Hicks, bc it feels like my stomach was tightening, and lasted only about a minute. Now I’ve had a couple of light-mild period-like cramps. Does this mean I’m getting close to starting labor? Sorry if I sound stupid, this is my first baby and I’m not sure what to expect lol

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