Ay, alam ko yan, sobrang uncomfortable talaga, di ba? Pero honestly, since madalas mo lang na-feel at sobrang affected ka na sa pag-stand, mas better kung i-check mo na with your OB para ma-rule out kung normal lang siya or may kailangan i-address na. A few of my mum friends din nag-experience ng ganitong tugging or pinching sensation during pregnancy, pero 'yung severity talaga differs, kaya dapat ma-assess ng doctor mo personally. Baka ligament pain lang or baby positioning, pero better safe than sorry lalo na 13 weeks ka pa lang, diba? Don't worry, usually walang big deal siya, pero peace of mind mo importante din!