I got the same with the cetrotide em, I put a cold cloth on it an it seemed to help, as Louise has said it's worse the first few times! I think I did bot in one side one night and both in the other side the next night! I know it was a whole ago but I thought is let u know wot I did anyway!x
Louise that's fab that u have 14 and can go in for ec on tue! Fingers x for u hun x