Hi mama! Kaya ng maraming preggy moms ang nakaramdam nito sa second trimester dahil lumalaki na ang baby at umaani na talaga sa muscles mo, lalo na sa hips at thighs, pero best pa rin na i-mention mo sa OB mo just to be safe na hindi ito something else. Stretch ka ng maayos, try warm compress, at mga comfortable positions lang habang natutulog, pero definitely check with your doctor para ma-rule out any concerns at ma-advise properly. You're doing great taking care of your body habang lumalaki ang baby, mama, keep listening to what your body needs!