I'm currently 11w pregnant with my first pregnancy after years of trying and fertility treatment including IVF. I'm very cautious and taking one day at a time. I'm about to take a month off work on pre planned annual leave, so once I go back I'll be about 16 weeks. Does anyone know if there is a legal requirement of when you tell your workplace that you will be taking Mat Leave? Everyone I know can't wait to tell the world at 12 weeks, but we plan on keeping it quiet until it becomes obvious. With my severely retroverted uterus it could be weeks yet. I don't think I could cope with everyone elses sadness if anything did happen. Do you think 3 months notice before taking Mat Leave is enough?