@doidontix, this is a really interesting thread, thank you for asking!
I personally have decided not to have the vaccine while pregnant simply because the mRNA vaccine, which is the one being offered to pregnant people, is still experimental and is still in Phase 3 trials (i.e. researching long term effects) ... it is the first publicly available vaccine of any kind that employs the particular new approach it uses (all other vaccines using this new approach, including cancer vaccines which also receive plenty of funding, are still in trials and have been for ~10 years.)
All the early data pointed to no increase in risk of miscarriage (which is why the advice changed in some countries from do not have it, to have it), but it can not yet give any information on any other longer term effects ... to baby or to adults.
There's already reports coming out about new suspected side-effects in adults, including enlarged heart muscles, kidney disorders etc, that may not become fully apparent for years. And that's not considering any hearsay reports about increases in abnormal pregnancy growth scans ... which may or may not be the case ... we don't know, simply because its too early to have any indepth research into these kinds of topics.
Plus there are still entire countries that are still not recommending the vaccine in pregnancy due to the lack of longer term data (including the one I currently live in!)
Essentially, I see it as all people (pregnant or not) who are having the vaccine now are basically agreeing to be part of the phase 3 long term studies. Which is absolutely fine, everyone can make their own choice. But my choice, particularly because I'm pregnant, is not to have it until there's more data available.