Totoo yan, mama! 37 weeks ka na, so Braxton-Hicks contractions (those hardening sensations) are super normal na, ang baby mo ay nag-eengage na talaga and preparing to come out soon. A few of us moms experienced the same thing around this time, parang ang baby talaga ay nag-practice na ng "pushing" movements, kaya ang sakit at feeling ng pressure sa puso mo ay expected na part ng third trimester! But since you're experiencing frequent hardening and pain, best to mention it sa OB mo sa next check-up para ma-confirm na lahat is progressing normally and hindi ito early labor, hindi masama mag-check lang, especially as first-time mom, para ma-ease your mind. Super exciting na talaga na malapit na syang dumating!