When you start to notice that the cramp goes away and comes back is when you should time. When you feel the cramp start, take a peek at the time, when you feel the cramp let go or release, check the time again. It's very likely that the cramps will be less than a minute long in the beginning, and more than a couple minutes apart. My hospital recommends that if the cramps/contractions are lasting about a minute, and are five minutes apart, to go to labor and delivery for an evaluation.
I'm 39 weeks today and I've had non stop menstrual like cramps. I'm a ftm also so I'm afraid I won't know the difference or know when I'm in labor. Idk how to time then either. I just want to get this over with.
My labor started off as a dull lower backache and then turned into what felt like period cramps and progressively got worse until I couldn't talk or focus on anything during a contraction. Basically think of the BH contraction and add pain and feeling you need to use the washroom because of the pressure down there.