Rejected By The Alpha, Claimed By His Brother

My Alpha husband just woke from a five-year coma... and I'm pregnant with his brother's baby. He still calls me his mate, still believes I spent five years waiting for him. He doesn't know he rejected me, broke our bond, and lost me forever. Now the only thing more dangerous than my secret marriage is the child growing inside me. What happens when he finally learns whose Luna I really am?