I have some questions regarding assisted conception.

1. How long did you TTC before getting a referral or advice?
2. How old are you/were you when you started getting help.
3. Why do you need help?

The reason I want to ask these questions is because I have always had trouble falling pregnant. I went to the doc at 24 and they basically laughed at me because "I was so young, and had plenty of time" Finally at the age of 27 I was taken seriously but sure enough, just 2 months before my appointment with the fertility specialist I found out I was pregnant with TWINS!! The problem is now is that I don't want to wait another 3yrs to concieve again, but since it's obvious I CAN fall pregnant I think once again I wont be taken seriously.. I am terrified of getting to 40 and still having issues so I would rather get sorted now IYKWIM?? I hope this all makes sense. Thanks in advance for your replies, I realise they are quite personal questions..