Relating to a court order for retroactive child support, including for retroactive child support beginning on the date of the child's conception.

HB 88 changes Texas law to allow courts to order retroactive child support beginning as early as the date of a child's conception, rather than just from birth. It requires courts to use medical evidence (per standard practice) or strong testimony from parents to establish the earliest possible conception date. The bill also permits courts to order paying parents to cover a fair share of prenatal and postnatal medical costs for the mother and child. These changes apply only to new paternity orders or acknowledgments signed on or after the law's effective date, not to existing cases.