With Valerie still determined to have IVF, Ayesha feels obliged to set her straight on a few basic facts on anatomy. Karen's treatment of JJ undermines his confidence and incurs harsh words from Mrs Tembe - will she ever forgive Karen?

Al tries to get to the bottom of his headaches, while Zara and Daniel return to find Valerie in a very odd mood. Heston is put in a difficult position when a patient's son asks him a nightmare question.