HB 187 amends the Texas Family Code to require retroactive child support payments from a man upon adjudication or acknowledgment of paternity, starting from the first month of the child’s conception. The bill mandates reimbursement to the mother for an equitable share of expenses related to pregnancy, delivery, and postpartum recovery, including medical costs not covered by insurance, essential items (e.g., diapers, car seats), and lost wages due to medical attention. Interest on retroactive payments will only begin to accrue one year after the order is issued. This law applies to orders and acknowledgments issued on or after September 1, 2025.