Is he on any long-term, daily medication at this time? Just thought I would ask, as that could affect the level of stimulation his penis requires in order to reach orgasm during sex. But, whether or not it is medication related, it appears that he now may need a little more stimulation during sex--for whatever reason. The good thing, as you said, is that he was able to stay hard and ejaculate during oral sex. The stimulation/input that you give him with your hands and mouth, along with the speed and pressure when giving him oral can be enough to make a difference between ejaculating and not. So, at least you both know that "everything works" from a physical standpoint. Let us know if there is anything else that you'd like to know so we can hopefully help.
He isn't under any more stress than normal. Actually, we are better financially than we have been in a long time. I guess I'll just have to wait it out.
No, It's probably not you. Has your husband been under any kind of stress lately? Stress can really cause sexual problems.
It's not uncommon for couples to have ups and downs with their sex lives. Try not to focus to much on this and hopefully things will get back to normal very soon.