Help?? Anti - E antibodies??

Kloe

I just got a call about my bloodwork, I am 6 weeks today. She said my tests came back for having the anti - e antibodies and that I am being referred out to the hospital to see their maternal fetal specialists about it. I had a blood transfusion after having my daughter 3 years ago due to preeclampsia. So it may be where this happened. But I know nothing about it, can someone tell me what this means for this pregnancy?