Sayang, this is something you really need to check with your doctor or OB-Gyn first, okay? At 6 weeks pregnant, any vaccine decision kena discuss dengan medical team you because they tahu your full health history. A few of my mum friends were also unsure about vaccines during pregnancy, so they called their clinic terus and dapat clear guidance, maybe you boleh do the same? Your doctor will advise based on your specific situation and the benefits vs risks untuk you and baby. Jangan stress ya, tapi jangan self-decide je, get proper medical advice first!