I need advice/suggestions

Hi! I am 5weeks 4days pregnant and I am currently consuming these both since a month ago. Just wondering, can i take iron tablet too? Because i have anemia, and also when should I start taking calcium supplement? And once i finishes my Folate should i already upgraded to the Blackmores Pregnancy and Breastfeeding Gold / Advance? And whats the difference? Thank you in advance!! ?