star's younger brother, personal trainer Daniel Mc Adams, announced that he is expecting a baby boy later this year with his wife, Kristin.
The bittersweet news was delivered just after it was revealed that Rachel's ex, fellow Canadian Ryan Gosling, had a second daughter with partner Eva Mendes.
They are still very close."The source told Radar that the actress is thrilled about the baby. She's told friends and family she can't wait to meet the new member of the family and play the role of aunty.
The source also told Radar that it was bittersweet that her younger brother was having a baby before she did.
"There's always a sense that the oldest child should be the first to have a baby of course, but there's still time for Rachel.