35 week of pregnancy, antibody anti-e (1:8).my blood group:ab ccd.ee(rh pos), father b+.what does it mean?why should we test the antogen of the father?

Rh is complicated: Anti-e ("anti big-e") is much less likely to be troublesome than anti-d (the common anti-rh antibody). You inherited two copies of the cde allele, one of several that you can get at your main rh locus, and the father of at least one of your children has at least one copy of an allele with a big e. Titer isn't so important as how junior seems to be doing before birth. Best wishes.