I wouldn't worry if I were you. Think about it - how many women get pregnant naturally and have no idea - and they go about their normal active lives with no clue - and still get a positive result. I think a lot of IVF doctors recommend taking it easy because they figure it wouldn't hurt anything to do so. We are all investing so much time, emotion, and money into this that it is best to take every precaution possible.
I am sure that you going out to dinner, etc. did not hurt anything - ecspecially if your clinic told you it was ok.
When you say abdominal pain - do you mean cramping? Or are you getting actual sharp pains?
Just take it easy and try to imagine your little guys in there hanging on! That is what I did - I was talking to them from the day they were transferred and I would visualize them burrowing in to my uterine lining. Anytime I would move at all my hubby would say "careful! They're trying to hang on in there!" May sound crazy - but it made us laugh and got us through it and we got a good result in the end.
I had just as many down, negative days as I did good days but, for the most part, I didn't worry and I thought positively.
