Ay, okay lang yan usually lalo na kung hindi sobrang sakit, pero mas safe pa rin na i-check mo muna with your OB para sure kung ano talaga ang cause, could be ligament pain, gas, or something else na normal sa pregnancy. Sa meantime, maraming moms around me na nag-try ng heating pad and it helped, pero some docs prefer warm compress lang or pag-adjust ng position, so better ask din kung okay ba talaga siya for you specifically!