Wah, that's quite soon after COVID! Since your doctor dah advise it, I'd trust their judgment lah, they know your situation best, and 26 weeks is still okay for most vaccines during pregnancy. A few of my mum friends took boosters while pregnant juga because doctor recommended, and they were fine, so don't stress too much. Tapi kalau you're still worried or not confident, maybe double-check with your gynae to make sure they're aligned with your GP, just for your peace of mind? Either way, you're doing the right thing by asking and getting professional advice.