Hope the dog shows her the adoptive parents. There is no way that Mary is ready to handle a baby. With her job she has to be on call 24/7 unless she's hiring a nanny what is she going to do with the kid. An emergency coming up doesn't allow her time to pack said baby up and drop it off or witness or partner could end up dead. Then she can be an unemployed mother. The only other option is Jinx and Brandi and there's no way those 2 are responsible enough. Turning the show into her struggling to be a Mom would end up destroying the show. There's only so much you can do before it gets old. Add to the fact it's been done several times over and where is the originality in the show. How many shows have had a single adult mother make the smart decision to go with adoption. I can't think of any. Mary maybe good with witnesses that are kids but she gets to leave them with their parents. It's a whole different ball game when it's your own. At this point in Mary's life she needs to deal with her issues before even contemplating raising a child. The reasons she gave for the adoption were all perfectly correct. It's the maturest thing she's ever decided to do and the right thing for the character.