We have evidence that it affects sperm, so what Frank Clegg is saying is correct. We don't know how it affects egg cells. We know that sperm are reproduced regularly. After three months you have fresh sperm. One of the recommendations is for people who are trying to get pregnant to not have the male use his cellphone for at least three months, or at least not keep it in a pocket. Women are born with all of their egg cells and if our egg cells are damaged this could have long-lasting effects on the population.