Due Dates and Vitamins

Amber Skye • Wife + Mama to 2 under 2 👨‍👩‍👧‍👦
Hey ladies! I just found out last night that my months of sickness was for a good reason after all! Baby W is estimated at 7 weeks 5 days and will be making his/her arrival around Jan 28, 2018. I could not be happier (or more nervous).
Question though: pre pregnancy I was on prenatals, B12, and D-3. Are all 3 of those still okay to take throughout my pregnancy, or should I simply stick to prenatals? And what about stool softners and daily allergy medication? I want to do EVERYTHING right and I'm starting the process of receiving Medicaid and finding an OB next week.. but I don't want to be doing something wrong up until then. 
Any tips/advice, please share!