Truthfully, I had more side effects with Clomid than I did with injectibles. I really felt fine -- no grouchiness or night sweats or anything.
I know there was some bloating but it was more of a visible side effect than something I could really feel. Everyone's different, though. I hope you have as easy a time of it.
Or do most DH's produce samples the morning of retrieval?
I think this is standard practice. Fresh is best. Not all men produce sperm that freezes well, so there's no need to add more variables to the process.