Uy, normal lang yan sa third trimester, mama! Ang baby ay bumababa na sa pelvis mo kaya that heaviness and pressure sa vagina at thighs, lalo na pag tumitigil ka from lying down, a few of us moms complained about the same thing sa aming group, kasi ang weight ng baby plus all the hormones really do a number on our pelvic area. But just to be safe, mention it sa OB mo sa next check-up para masigurado na walang other concerns, kasi sometimes yan ay normal pregnancy stuff pero better to confirm lang. Kaya mo yan, first-time mama, almost there na!