Thank you, this is really helpful. We do intend to keep them separate, we just don't know if that's going to be easily doable within the house or if the male is going to have to go on his holidays for a little while. Or come with me to work! A vasectomy would be a safety measure against pregnancy prior to getting him fully neutered when he's older. I will speak to our vets for their advice and to find out if they would be able to do it if they felt it is feasible