All medicines (including vaccines) are tested for safety and effectiveness before they are allowed to be used. Once they are in use, their safety continues to be monitored by the Medicines and Healthcare products Regulatory Agency (MHRA).
There is no evidence of risks to your pregnancy from this type of vaccine. The RSV vaccine is not a live vaccine, so it cannot cause RSV in women or their babies. The RSV vaccine is the safest and most effective way to help protect your unborn baby from RSV.