Uy, congrats na sa progress mo, 2cm na! Hindi naman sure kung yung black coffee directly ang nag-trigger, pero totoo na some moms say kape does something, a few of us tried it hoping mag-kickstart ng labor, haha, pero honestly it's hard to say kung yun talaga or coincidence lang. The good thing is your body is moving now, ang primrose mo ay nag-work together with whatever happened, at excited na kayo makita ng baby soon! Keep observing those contractions, and if they get stronger or closer, back to the hospital agad, you're already at 2cm so you're on your way na talaga!