Aw, first trimester pains can be so scary, lalo na kung first time mommy ka! Ligament stretching is super normal around 8 weeks, but kasi ganyan ang pregnancy, hindi mo talaga alam kung kailan "normal" stretching lang or something na kailangan i-check. Suggest mo na sa OB mo next visit, especially if may spotting, fever, or mas lumalaki ang sakit, para ma-ease your mind agad at hindi ka mag-worry whole day hehe. Sending you a healthy pregnancy, mama!