Question about how to induce labor..

Ashley • Ashley • Taken by Coby ♡ • Emily Marie and Lexus Rae

My boyfriend and I had sex at 37 + 4 days, how long after did it take you to go into labor? I've been having intense braxton hicks, lightening crotch since right after, and it has got pretty bad. I will be surprised when I go to the doctor later today if im not dilated yet.