Ay, normal lang yan sa pregnancy, mama! Ang lower butt pain na yan ay madalas dahil sa sciatic nerve or ligament stretching habang lumalaki ang baby, a few of us pregnant moms din nag-complain nito around your weeks, so you're not alone. But since you're worried at it's causing you discomfort, best to mention it sa OB mo sa next checkup para sure lang, especially pag nag-worsen or nag-spread pa. In the meantime, try pacing your activities, stretching gently, at baka maghelp din ng prenatal pillow para ma-relieve ang pressure. Kaya mo yan, mama, maraming pregnant moms na nakalagpas dito, pero always better to check with your doctor para peace of mind mo. Sending you strength!