Anemic

35 weeks, went to my appointment yesterday and mentioned I had some random bruising in my legs having not done anything to cause them. They took a blood test and apparently my hemoglobin had dropped and I am pretty anemic. So now of course I am googling and everything and so worried for my baby boy. What if he has a neural tube defect or down syndrome or physical or mental disability from me not taking prenatal vitamins as much as I should (they have made me sick off and on all pregnancy) or not having enough iron. We haven't had an ultrasound since 20 week anatomy scan so I am worried that there is something they didn't see then that could have developed. I don't know what I would do if something like that happened. Now I feel like I am going to only think about that for the next month.