In scenes that will air in the New Year, Grace will return with a bun in the oven and tells him that it's his, willing to get a paternity test to prove that he's the father.
That turns out to be the case, and an elated Michael heads to her 20-week scan and pledges to support her, but Aggie still thinks that she's out to mess him around.
She suggests that Michael applies for sole custody of the child, since Grace has proven that she isn't to be trusted.
ITV