Hai sayang! Congrats on your pregnancy! Honestly, untuk soalan macam ni yang involve vaccine and pregnancy, better you confirm directly dengan doc or midwife mo, setiap body lain-lain kan, and they'll give you the most reliable answer untuk your specific situation at 19 weeks. A few of us mums dah ambil vaccine during pregnancy, tapi everyone's experience macam berbeza, so it's really best to ask your healthcare provider directly. They'll know your full medical history and can advise you properly! Take care, and don't stress too much, just reach out to your clinic, okay?