Prenatals

Veronica
Hello!
I've been looking for non-GMO, no soy, organic prenatals with folate, not folic acid, and was directed to some options. Most don't have DHA. I need at least 200mg as my diet contains some foods and seeds rich in DHA. Any suggestions on prenatals, and DHA supplements? I must, no matter what, have at least 2000IUDs of D3, so that is a supplement I am looking into as well. 
I constantly feel like I'm going to get a head cold but never do. Maybe I should look into organic vitamin c supplements as well? Thanks so much!