Regarding COVID-19 vaccination & fertility treatment

There are several known potential issues to discuss and explore.Recently, the number of inquiries regarding COVID-19 vaccination has increased.

The vaccine itself is a new formulation, and our clinic can therefore not formulate a one-size-fits-all answer to whether or not a patient undergoing fertility treatment should be vaccinated.
It is necessary to use your own judgment.
However, given the nature of the vaccine, the recommendations of the Ministry of Health, Labor and Welfare, the United States, and international organizations can be summarized from the viewpoint of safety as follows.

As there is no live virus in the vaccine (similar to the influenza vaccine) there is no need to use contraceptives for any period during or after inoculation. (This is in contrast to e.g. the rubella vaccine which requires 2 months of contraception.)
Inoculation is possible during fertility treatment and pregnancy alike.
*On June 17, 2021, a vaccination message for pregnant women was announced under the joint names of the Japan Society of Obstetrics and Gynecology, the Japan Society of Obstetricians and Gynecologists, and the Japan Society of Obstetrics and Gynecology Infectious Diseases. The previous position recommending that patients “avoid vaccination during the organ formation period (up to 12 weeks gestation)" was removed. There is no longer such a limit. As a result, we agreed with the Japanese Society of Reproductive Medicine.
There is no problem with inoculation during the egg collection cycle and transplant cycle. However, assuming side reactions such as fever, it is better to avoid 2-3 days before and after egg collection and transplantation.

Oak Group

[Reference Links (Japanese)]

New Corona Vaccine Q & A [Ministry of Health, Labor and Welfare]