Ganoon talaga ang third trimester, mamsh, yung ligament pain at Braxton Hicks contractions ay super normal na, lalo na malapit na sa due date mo. Pero since it's localized sa left side at 37 weeks ka na, definitely worth checking with your OB para sure lang na okay ka at ang baby, especially if may cramping o unusual bleeding pa, better safe than sorry talaga sa stage na ito!