If you can't perform the Passover in the first month, what do you do?
Answer From The Annual Reading Schedule - Week 33 Notes For Numbers: Perform it in the second month (Numbers 9:10-13) (This is, of course, assuming that you meet all the other requirements such as being circumcised, not being defiled by a dead body or grave, and the laws of the Zevach, etc.. We cannot perform the Passover as commanded in Exodus 12 unless we legally qualify to do so. Read the reading notes Week 16 answer for the question, 'Should believers today take a lamb on Passover and perform the Passover with all its' laws and ordinances, including the blood on the doorposts, etc., or not?'.)