Hi mama! Normal yan at maraming first-time moms ang nakakaranas ng ganyan around 36 weeks, could be Braxton-Hicks contractions or just ligament pain kasi lumalaki na talaga ang uterus mo. The fact na mawawala at hindi consistent ang sakit ay mas nagsasuggest ng practice contractions lang, pero para sigurado talaga at mapanatag ka, better check with your OB pa lang especially since it's your first baby at gusto mo malaman kung may changes na sa cervix mo or anything else.