Congratulations on your pregnancy! Are you excited?! So, you conceived a week after the vaccine. hm. Well, they do recommend waiting one month post vaccination before pregnancy. But there have been other women who have had your situation. By and far, the data supports that they had healthy pregnancies. That is not a guarantee but reassurance. Have you spoken to your doctor yet? I would let them know about the vaccine right away. This link is to an article that talks about exposure of the vaccine when pregnant (and you weren't pregnant yet, so would think risk even lower for you). Very low incidence of any issues. https://academic.oup.com/jid/article/197/Supplement_2/S178/844645 The cdc makes a differentiation. Did you have live vaccine or not live? Most have not live. If that is the case, zero risk to a fetus. https://www.cdc.gov/vaccines/pregnancy/hcp-toolkit/guidelines.html