Mama, if your OB is okay with it, then you're good! Honestly, a few of us din went through 2nd trimester with just folic acid and multivitamins kasi ang OB namin parang practical lang, especially if you're eating well and the maternity milk is helping na rin with calcium, so don't stress yourself out comparing with others na nag-take ng maraming supplements. Your doctor knows your specific situation, so trust mo lang siya doon, at if you're worried talaga, just ask your OB sa next visit kung kailangan mo pa ng iron or calcium separately so you have peace of mind!