BP Step #1 - Lift your jaw off the floor.
BP Step #2 - Figure out the baby's age-do the math.
BP Step #3 - Try to remember the woman and with any luck, her name.
BP Step #4 - Double check that she's not confusing you with your twin brother.
BP Step #5 - Ignore your five sister's scowls as your entire family watches the drama unfold.
There's only one thing you shouldn't do.
BP Step #6 - Don't assume she's there because she wants your daughter to call you Daddy. You'll only end up disappointed.
Time to figure out a new plan-one that changes her mind.