Hey mama, that sharp sensation down there is super common sa late pregnancy, marami sa amin nag-experience nito around 35 weeks, parang may tumuturok talaga sa cervix or pelvic area, lalo na pag active ang baby! Since your little one is moving well at walang spotting, it's usually just baby's position or your ligaments stretching as you're getting closer to delivery, pero since you're worried, mas maganda pa rin i-mention mo sa OB mo sa next check-up para ma-rule out anything else and matugunan ang mind mo, because peace of mind is important especially ngayon na malapit na. You're doing great, and you're so close na!