Oo, common yan sa first trimester dahil sa ligament stretching at hormonal changes, pero since masakit talaga ang sa'yo, best i-check mo sa OB mo para sure lang, especially pag may cramping or bleeding pa kasama. One of my friends kasi nag-experience ng same thing pero nag-relax lang siya at naging okay, pero bawat pregnancy is different kaya better safe than sorry! Wag mo lang i-ignore if nagiging worse or may other symptoms ha.