6 weeks and 2 days pregnant whoop!!!! what to do next?

well I am defiantly expecting again have had it all confirmed. which even though we was trying came as shock as i only had my implant out in may. so happen quickly, am waiting for appointment with midwife and a scan date. I have had 2 babies already but was just wondering what vitamins I should be taking, and if there is anything else i am suppose to do? xx