“Homework” is tracking down news reports and articles that provide data taken from legitimate sources, such as VAERS database, or fromsimilar valid data sources. You might find this link useful. Preliminary Findings of mRNA Covid-19 Vaccine Safety in Pregnant Persons (nih.gov). In the interests of brevity, I’ve extracted the following.

Conclusions

Preliminary findings did not show obvious safety signals among pregnant persons who received mRNA Covid-19 vaccines. However, more longitudinal follow-up, including follow-up of large numbers of women vaccinated earlier in pregnancy, is necessary to inform maternal, pregnancy, and infant outcomes.

My husband and I chose to get vaccinated, and it wasn’t much worse than a flu shot. My oldest son and his wife, recovered from COVID before they were able to get vaccinated, and chose not to get the shots because they had the more robust, natural immunity. My younger son and his wife, who has her degree in nursing, chose not to get the shot because they’re trying to get pregnant, and I respect their decision.

Vaccines are certainly not new, but this is an mRNA vaccine, and that is new.
The work on these vaccines were accelerated at an incredible pace, and were rolled out to the public by skipping much of the testing that would normally be required. The vaccines being administered are still under the EUR, and there is no legal recourse for people who suffer adverse reactions, included long-term disabilities or death, due to being forced to “take the jab” or lose their jobs or access to education.

So yes, there ARE legitimate reasons not to get vaccinated.