After the birth, arrange birth registration: within 42 days in England, Wales and Northern Ireland, or within 21 days in Scotland, then order certificates if needed. Tell your employer about maternity, paternity or shared parental leave and check whether you need to apply for Child Benefit through GOV.UK. You may also want to register your baby with a GP, check their NHS details, and apply for a passport if you plan to travel. Requirements can vary, so use the official GOV.UK guidance and check with your local registration office or employer.