Braxton Hicks 18weeks

I’m having some real strong Braxton Hicks lasted 3-5am found some relief but the minute I got up at 6 they are back. They make me pause in my tracks but are tolerable . Is it common to experience them earlier the more pregnancies you’ve had ? This is my 3rd but with my others I never experienced Braxton Hicks till I was at least 25 weeks or so