Hi, I M Dr.Kumarbhargav Consultant Pathologist I understood your problem Looking to your profile Rubella IgG positivity indicates you are immune to rubella due to previous exposure as even one exposure makes you life long immune, so rightly no need to take rubella vaccination. Similarly you should check your status against varicella (chicken pox) before proceeding further and also the vaccine is usually available in combination but monovalent forms also available. Also important to note that you have to wait for 28 days following vaccination before conceiving (being pregnant) after vaccination. So keep in mind that also. Thanks for contacting health care magic. Take good care of yourself.