To celebrate her daughter Olive's birthday, Katherine visits a fertility clinic to discuss the odds of giving her a sibling with help from a sperm donor.

Katherine meets Shep for a failed transaction, then meets Evan's "nice and normal" parents. Bev and Katherine speak at a feminist convention.

After Katherine strikes out with an adoption agent, Olive and Millie get suspended. Shep shocks everyone with big news. Bev spies Evan at a pub.

Katherine renews her quest to get pregnant with help from a surprising source. Praise be! But is it too good to be true? Elsewhere, Olive's growing up.

Secrets swirl around Shep's big day ... and savvy Jane has it all figured out. With so much at stake, can Katherine control the chaos?