Clingy cats: sign of near labor?

Cierra
Two of my cats have been extremely cuddly the last couple days. Could they be sensing close labor possibly? 
I'm 34 weeks, but had an episode of preterm labor at 30 weeks that they were able to stop. At that time I lost my mucus plug and bloody show, was 50% effaced, and a fingertip dilated. 
I won't get another cervical check for another two weeks at my 36 week checkup. 
The last week I've been experiencing strong menstrual like cramps on and off, along with some lower back pain, usuallythe cramps  and back pain happen at the same time but they haven't been consistent like contractions. 
Has anyone else gotten an increase of affection from their pets right before labor started? I'm hoping I can make it to 37 weeks but it's really just a guessing game of when it's going to happen! 

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