Ay sis, this is really important, please talk to your OB agad before getting any vaccine, kahit second dose pa lang yan! They know your full health history at exactly kung safe for you and baby at 5 weeks, so they're really the best one to guide you on this. A few of my mum friends had the same question, at lahat sila tinulungan ng doctor nila step-by-step, so don't worry, your OB will have the right answer for you, promise. Kaya go na sa clinic agad, okay? Take care, mama!