Congratulations sa 31 weeks, mama! Ang pain na yan sa perineum area ay common talaga sa third trimester dahil sa weight ng baby at hormones, pero since it's really painful especially when you squat, better check with your OB just to be safe, baka kailangan lang ng some adjustments sa your positioning or stretches, or i-rule out kung may iba pang concern. A few of us pregnant moms felt something similar at nagpa-check lang din, and our doctors gave us specific exercises na sobrang tulong, so don't worry pero get it checked na para peace of mind mo!