Ay, normal lang yan, mama! At 37 weeks, ang baba nang baby mo ay settling into position para sa labor, kaya parang nag-shift ang belly mo at medyo ibang pakiramdam, some of us felt lighter, some felt heavier, depends talaga. But definitely better to mention it sa OB mo sa next checkup, or call kung may spotting or unusual cramping, para lang sure na lahat okay with the baby's position at movements!