After delivering the baby in the caravan, Valerie has large blood stains on both sleeves that are missing when she is later standing outside the trailer with Trixie.
Tom is called to Nonatus House in a hurry to possibly baptise the baby who was previously assumed to had been stillborn. However, previously, when the short-lived Thalomide baby was born at the hospital during Sister Julienne's secondment, she said one does not have to be a priest to baptise a baby and that she herself should have done it. Sister Julienne is tending to the baby now, so if there was a need, she could have baptised him herself, there was no need to call for Tom.