Here is a link to the information on the CDC website (Centre for Disease Control and Prevention in the USA) relating to the Covid 19 Vaccines.

You should note that the list of side effects includes possible serious reaction to anaphylaxis, which could be deadly. Anaphylaxis is the serious reaction similar to what some persons get when allergic to peanuts, or to insect bites.

The information also makes it clear that the vaccines have not been tested on pregnant women and therefore cannot be said to be safe for them or their unborn children. Neither have they been tested for possible effects on infertility.

People should also be mindful of the fact that no full licences have been issued to any Covid 19 vaccine, but only temporary emergency licences. That means that according to both the Law and Medical procedures, they are still deemed to be experimental vaccines. All those persons taking them therefore form part of their safety trials.

https://www.cdc.gov/vaccines/covid-19/info-by-product/clinical-considerations.html#Appendix-B

And here is a link to an article covering known side effects so far of all Covid 19 vaccines:

https://observer.com/2020/10/vaccine-side-effects-moderna-pfizer-johnson-astrazeneca/