Caring Wife. It sounds like you have taken that step back and are taking s breath. You have gotten some great advice here and this is one of the bets places on the Internet for support and help. All of us guys and gals here have been exactly where you and your husband are right now.
As some have posted having sex within 48 hours of a PSA test is not the way to do it correctly and the blood draws should always be before the DRE. Many GP's are not aware of this which is why we have URO's to do things proper. My GP was aware of my family history and the proper methods to do PSA testing and Dre's for which I was fortunate. I was referred to my URO by him when my PSA hit 3.5 which for my age 61 was not normal. I would think that if the PSA numbers are confirmed the next step will be a biopsy which is not that big of a deal. If the biopsy comes back positive for PC most likely you will not have to make any decisions about treatment immediately and if treatment is needed you probably can wait until later in the year when the landscaping business slows down due to weather.
I had surgery for my PC last June and I also own my own business and was back to work in 3 weeks with minimal side effects for my age. Your world is not over by any means so please stop the needless worrying, as it is what it is. Let us in HW do all the worrying for you. Good luck and keep us posted.
Terry The Water Guy