Sherlock hated to see John so upset. And for the health of their baby, he knew that John needed to stay as calm as he could. He walked over to John, slumped in a chair, and gently put his hand on his shoulder.

"I wish I knew the answer to that, John." Sherlock said, after Mycroft had left. "This is unprecedented, like they both said, so there is no blueprint for how we should do this." He sighed and went into the kitchen to make them tea. He came out a moment later, handing a cup to John. "Herbal, non caffeinated. You'll have to watch your caffeine intake." he smiled. John being a doctor, he would know this already, but he wanted to bring some levity into the tense atmosphere.