Hi. The sex of the baby can be identified as early as 10 weeks thru blood testing. Di ko lang sure if that technology is available na here, you can ask your OB. Pero pwede din thru ultrasound if you're lucky, but every baby develops differently kaya doctors mostly suggest mga 20 weeks pra sigurado. :) ^
Pwede po ninyo i-try patingnan pero usually 20 weeks kasi yan kasabay ng congenital anomaly scan