14 weeks is also not a viable fetus, so as crankin said, you are responsible, if you were to have any trouble, there is nothing much to be done. Unless you live in my state (UT) it is not likely that you will have that many pregnancies in your life. So maybe you could take time out to enjoy it? I had two and my second had me asleep almost all day and at 20 weeks we found out why (twins). None of this means don't ride or exercise or any such nonsense, it just might be a time to relax a little more though. If you get your doc to write a note, your airline tickets etc might be refundable. It is worth a shot.