Hay, alam ko yan! 13 weeks pa lang pero ganyan na talaga, lalo na pag bumangon or tumitigil ka bigla. I'd say check with your OB kasi sometimes it's just normal pregnancy aches pero better safe na, especially yung pain sa butas ng pwet, important i-monitor yan. A few of us moms also noticed na mas nag-improve pag nag-rest kami ng matagal, nag-invest sa matinding unan para sa back support, at nag-stretch gently (pero always get clearance from your doc first). Hang in there, mommy, third trimester yan nakakasakit talaga, but hopefully mabilis lang mapasa this phase.