Braxton hicks

Brittany
So I'm apparently 19 weeks even though the baby is way bigger than 19 weeks. But I've started having Braxton hicks and I know it's normal but I'm kinda concerned because I was put on bed rest with my first because I was contracting and dilated to a 3 about 3 months before I gave birth. I'm just worried that it's happening again and sooner this time. Should I be concerned or wait it out?