I was in that situation too and decided to consult my gynae and just go for the jab at 30weeks(after contemplating for really long).Now waiting for my second jab in about 2 weeks time.You do you ok!
vacinne is for the protection... im on my 28 weeks too... and diabetic as well.. insulin is my life now.. so having the vaccine is the best option...
Also in 28 weeks. Gynae advised to take vaccination ASAP due to cases increasing and reopening of borders. Just took first dose today!
Consult your gynae first. My gynae initially did not recommend me to go but gave the nod now for me to take at Week 30
Suggest to Vaccine.... in the US everyone encourages preg mums to do so too.