I accepted a new job a few days before finding out I'm pregnant. By the time I start I'll be about 14 weeks. When's best to tell them I'm pregnant, on the first day do you reckon or leave it later til I'm more established there (though will probably be obviously pregs by then). It's a large, public sector employer if that makes any difference, and they won't have to pay me any mat leave as I won't qualify. Advice would be much appreciated!