Ay, mahirap yan sis, kaya please check with your OB muna bago kayo mag-proceed, pain during pregnancy down there ay dapat tingnan ng doctor para sure na okay lang everything, hindi lang guesswork! 31 weeks pa lang kayo, so mas importante na confirmed na safe. Ako rin nag-alala ng todo-todo sa ganyan, kaya don't hesitate to call your clinic or go in, mas peace of mind lang talaga! Sending love, at ingat sa sarili mo.