Cazross - doctors always tell you worst case scenario. They don't want you to get too excited, only to be disappointed. Having said that, don't give up, but don't stress yourself out too much about it (easier said than done, I know!). The more you think about it, obssess, stress, worry etc., the more hormones and chemicals your body produces that will prevent it happening. You'll find that most people without a medical reason for infertility, but who have trouble conceiving tend to conceive just when they give up - they accept it will never happen, relax, stop thinking so much about it and bang! they're pregnant.
I know several people in this situation:
1. A friend with sever endometriosis was told she would never conceive - pregnant on the second day of her honeymoon (aged 26). 2 years later, she had her bowel removed due to polyps and bowel cancer, and was told there really was little chance that with the two problems she would ever fall pregnant again. Her and her husband kept trying, trying, trying, until they gave up after 4 more years. Their first was 6, and they truly decided they were lucky to have her. Heartbreaking as it was, they accepted it would never happen again. After an appointment with 3 specialists who all said, nah, not happening, they fell pregnant and now have 2 precious daughters.
2. A work colleague had always had menstrual problems, was quite thin, etc., and had had a miscarriage that required a D&C. Her husband had bowel cancer - all reproductive organs removed and placed on table next to him, then back in. Between the two of them, they were told there was less than .5% chance of ever conceiving. She was 33 by that stage. They bought a small house in inner city Melbourne, kept working hard, living life and accepted the fact, but decided to have a go at IVF. Booked their appointment for a year ahead. 3 months before the appointment, at the age of 36, she discovered she was pregnant, and had a healthy baby girl. Exactly 2 years later, a little boy was added to the family.
DON'T GIVE UP HOPE, BUT DON'T STRESS AND WORRY. If it's meant to be, it will be. If not, you could look at and consider adoption and fostering - although not your flesh and blood, other children also need families and parents because their own 'blood' are not there for them.