###Human: I got tested for rubella thrice and received different results. What can be done now? ###Assistant: Hi. I have gone through the attachment (attachment removed to protect patient identity). As per the laboratory reports, one thing is clear that you are not immune to rubella as the titers of IgG are below the required level. You are in a safer zone as you have appropriately vaccinated in childhood. In rare cases, due to numerous reasons, we do not develop complete immunity. Do not plan for pregnancy now. Get re-vaccinated again, check the titers and then think about conceiving.