Hi Maria and welcome to the BCC forums
Our helpliners are on hand to support you so please feel free to call 0808 800 6000, lines are open 9-5 weekdays and 10-2 Saturdays
You may find the following link useful too, one is to the 'Younger women's' information and this includes fertility information:
http://www.breastcancercare.org.uk/younger-women?utm_source=Homepage&%3Butm_medium=help_you&%3Butm_campaign=younger_women
Take care
Lucy