Aiyoh sayang, the petugas was right to check, pregnancy vaccinations memang ada timing dia yang strict untuk safety. Dari apa yang I know from my mum friends, most followed the 12-week guideline closely, some even waited longer to be extra sure. But honestly, setiap case lain-lain depending on the vaccine type and your health situation, so better you follow what the clinic advised. Balik check with your clinic or your doctor, dorang boleh explain better why 12 weeks exactly for your case, and maybe they can book you balik once you hit that week. Jangan stress, you're doing the right thing by being cautious!