First time mom here

Hello mga mommy's good afternoon! Ask ko lang po if ung ob doc nio ngreseta ng Multivitamins(obimin plus), ferous sulfate(hemarate FA), Calcium(Calciumade) at the same time po pgkacheck up nio. Si doc po kasi ngpareseta ng ganito, tpos itake ko din daw lahat everyday. At meron pa progesterone(heragest). Im 16 weeks pregnant po. Thanks