Honestly, mas usual na 400mcg (0.4mg) ang recommended during pregnancy, so ang 5mg mo ay significantly higher, better to check with your OB agad kung bakit ganyan ang dosage niya, baka may specific reason para sa iyo or baka need i-adjust lang. Folic acid is super important sa first trimester for baby's development, pero ang amount talaga ay dapat based sa doctor's assessment, hindi random!