Vitamins after throwing up

Kari • Pregnant with first child, due September 28, 2016!
So I threw up the first time this morning. I am six weeks six days. It was about 20 minutes after I took my prenatal vitamins. Would you take folic acid again? I'm afraid it may not have entered my system. I don't think there is any harm in taking a couple extra even if it did get into my system in that short amount of time.  I just don't know how bad this morning sickness is going to start to get. I'm going to be better about taking them with more food maybe around lunchtime. But if I continue to throw them up I want to know if I can take more.