Baptism may be celebrated on any day, but it is particularly fitting that it occur at Easter. After all, Pope Benedict XVI has always counted it a special privilege that he was baptized the very day he was born on Holy Saturday 1927 with the newly-blessed baptismal waters. The Code of Canon Law states:
Though baptism may be celebrated on any day, it is recommended that normally it be celebrated on a Sunday or, if possible, on the vigil of Easter (canon 856).
Parents are obliged to see that their infants are baptized within the first few weeks. As soon as possible after the birth, indeed even before it, they are to approach the parish priest to ask for the sacrament for their child, and to be themselves duly prepared for it (canon 867 §1).
I recommend speaking to your pastor now and, presuming that everything proceeds as planned, asking if it is possible that the baby can be baptized along with the adults in the parish who will be received into the Church on the Easter Vigil.
Milestones by Joseph Ratzinger (Pope Benedict XVI)