After reading your Q in the check in, I think you are talking about Menopur. I had the same issue. A few drops would come out when my DH was trying to get the air bubble out.
In my experience, when he injected the air bubble it made the injection site burn for several hours afterward. A few drops lost is okay and I personally prefer that to the awful burning.
We had a successful ER and ET with injecting the Menopur this way.