What Happened to Ghost Whisperer's Baby Bump

Did the spoilers spoil Ghost Whisperer's shot at a Nielsen baby bump?
Friday's long-anticipated Melinda's-having-a-baby-with-her-dead-husband episode averaged 9.2 million presumably not-so-surprised viewers, per preliminary estimates. The show dominated the night, but failed to match its season average of 10 million viewers.
Elsewhere in the weekend ratings:
Desperate Housewives (13.5 million) was the biggest show going.
Prison Break (series-low 3.1 million) and Dollhouse (season-low 3 million) weren't.
At 10 p.m. Sunday, the second hour of Celebrity Apprentice (8.2 million) beat Brothers & Sisters (9.4 million) among adults 18-49 who couldn't tune out the the riling of Melissa and Joan Rivers.
The Amazing Race (10.3 million) ran even with last week.
Two weeks into its run, Sit Down, Shut Up (4.2 million) is flunking out.
Repeat Jay Leno stuck it to all-new David Letterman again on Friday. Leno's Tonight Show is supposed to be back from its host's sick-bay break tonight.