Suppose a boys birthday is 6 Iyar, which is on a date that all hold in Sefira. For those that do not give a haircut to a child until the child is three, can they make an Upsherin on the birthday? If not should it be done before Pesach, Lag B'Omer? (sources)

Suppose a boys birthday is 6 Iyar, which is on a date that all observe mourning practices in Sefiras Homer. For those that do not give a haircut to a child until the child is three, can they make an Upsherin on the birthday? If not should it be done before Pesach, Lag Ba'Omer or some other time? (sources)

Suppose a boys birthday is 6 Iyar, which is on a date that all hold in Sefira. Can you make an Upsherin on the birthday? If not should it be done before Pesach, Lag B'Omer? (sources)

Suppose a boys birthday is 6 Iyar, which is on a date that all hold in Sefira. For those that do not give a haircut to a child until the child is three, can they make an Upsherin on the birthday? If not should it be done before Pesach, Lag B'Omer? (sources)