Anti-E

Had a phone call from the anti natal clinic about an hour ago, telling me they want to do more bloods at 28 weeks. (Currently 13 weeks) and that it’s 2 and under (whatever that means!) Ive been left in a mess haven’t stopped crying, she told me on the phone to Google it (WTF!) there isn’t much online only typical doctor stuff and I just don’t understand it. I had a blood transfusion with my first child (who’s now 4) and she said that could be why I know have anti-bodies (anti-e) does anyone else have this and can tell me what it means? She said it can be bad for my baby, I’m hysterical here 😭 please if anyone has advice I’d appreciate it! X