Im 17 weeks and they told me i might have to wait longer too. I am going crazy i want to know soo bad!!!
Mine is next Thursday and I'll be 19+1! I'm so excited!! We are flying out on Sunday to visit family for a week and really hope to have some fun news to share :) its such a torturous wait, but you can persevere.
I went for an early scan at 16 weeks so we would know the sex for our wedding which was that weekend. Can you not go for an early one?