Terra still doesn't fit into any of her pre-maternity clothes and convinces Joe to make a get-fit pact. While working out, Joe reflects on all the surgeries he endured as a child and hopes Penny's impending genetics test results won't reveal a similar fate.

Terra and Joe receive the long-awaited news of Penny's genetic test results. The exhausted new parents prepare for a Sip n' See party they're hosting for friends to meet Penny. Will the main topic of conversation end up being about their baby or the guest who wasn't invited?

The pressure is on Joe to succeed at his first Mother's Day. He wants to pamper Terra, but that isn't his only challenge. Penny requires 24-hour care and an exhausted Terra begs Joe to watch Penny all by himself for the afternoon. Will this Mother's Day be one to remember, or one that sends Joe to the doghouse?