Sis, please check in with your OB about this para sure lang, better safe than sorry, lalo na sa pregnancy. Pero honestly, a few of us mums experienced something similar at that stage, at sabi ng aming doctor, sometimes it's just Braxton Hicks practice contractions or the ligaments stretching as baby grows. Still, your doctor needs to see you in person para ma-assess properly, never guess sa pregnancy, di ba? Kung may pain or bleeding, go to the clinic or ER na agad! Take care, mama!