this is day 3 of me having Braxton Hicks ...but today the contractions r 5 mins apart n I'm only 27…

this is day 3 of me having Braxton Hicks ...but today the contractions r 5 mins apart n I'm only 27 weeks!! but this pain is getting unbearable!! I haven't been pregnant in 17years so I don't remember if it's normal or not!! So I'm asking is this normal or should I go to L &D cuz Tylenol n the heating pad isn't helping anymore