In these circumstances, you must be:
taking time off to support the primary carer or care for the child
married to, or be the civil partner or the partner of the primary carer
Can I take time off to support my partner at ante-natal appointments/high-level contact visits?
You will be allowed reasonable time off with pay on up to two occasions if there is a particular need for you to support:
the mother-to-be in attending antenatal care appointments made on the advice of a registered medical practitioner, midwife or health visitor; or
the primary carer-to-be in attending high level contact visits in preparation for the child’s placement for adoption made on the advice of a registered UK adoption agency.