Uy, totally normal yan sa pregnancy, lalo na first time! Parang may pressure or heaviness sa pelvic area, diba? A few of us moms felt something similar around that time, isa sa friends ko akala niya may problema pero sabi ng OB niya it's just the ligaments stretching and the uterus growing na. Pero since this is your first time and gusto mo sure, i-mention mo lang sa next check-up mo, okay? Makakarelieve ka ng peace of mind, at least.