FTB can take up to 6 weeks to process as well after the baby is born. Most of the time i have started receiving within 4 weeks but i have read alot online that time frames just depend on the back log and it seems to vary alot.. some receive within 2-4 week others are still waiting 6 weeks later. average i would say is at least 3 weeks after baby is born and forms lodged within days of babies birth