IIRC the only routine preconception testing is CF and hemoglobin electrophoresis to tell about sickle cell anemia. These are the only things that have high enough preponderance and are clear-cut enough to justify testing in most regular partnerships. While I’m sure you could test for a lot of things, there is ethical and scientific basis against testing in many cases. If there is a family history of a clear genetic disorder then it can be warranted. But you have to be able to do something with the information that you get.
For instance, if there is a family history of a dominant disease, one has to really consider if one wants to chance passing that on to a child. The operative example here being Huntington Disease – universally fatal in a sucky way by the early 50s, dominantly inherited. See Guthrie, Woody. Arlo (his son) had the option to get tested in his 20s and refused. He had a 50% chance of inheriting the gene and dying in his 40s, and he didn’t want to be faced with that. For a disease like that – if you knew you were carrying a gene that would give you bad cancer in your 30s or neurodegeneration in your 40s – would you want to have kids? Would you want to chance passing it on to your kids?
There are other troubling scenarios. I’m Ashkenazi. My wife is Ashkenazi. This leads to one of the exceptions where preconception testing becomes warranted as there is significant carriage of recessive alleles leading to fatal disease. Done through my department, we tested a few, including CF, Tay-Sachs, Gaucher, familial dysautonomia, and Canavan. Recessive diseases mean that if both parents are carriers, there is a 25% chance that the kids will be affected. So if one parent is a carrier, test the other parent, if both are affected do CVS or maternal-fetal sampling, and if the fetus is affected, one has to be prepared to abort midway through the second trimester.
That can be a big problem for some people. Especially for a disease like Gaucher Disease, which can be terrible and life-shortening or, given a different genetic background, can be almost asymptomatic and eventually treated with splenectomy. There is a debate in the medical genetic community as to what to do for Gaucher. Gaucher Syndrome is not an anomaly, either – many if not most genetic diseases can have a wide difference in degree of presentation. So what do you want to do with the information?
From the list of diseases in your OP, none of those except perhaps the cancer is a commonly tested genetic scenario. I’m sure you could find some tests to have sent off, but I would advise you that the data you get back from them will not be easily interpretable, to the level that it could dictate how you would manage conception planning and a pregnancy. All of them would be worse than the information you get from a Gaucher Disease test. Except in the unlikely scenario that you have an BRCA1 or 2 mutation or any of the other cancer syndromes, the most you would get is something like “You have an allele that may increase your risk of cancer by 10%.”
If you are concerned, mention it to your OB/Gyn at a preconception testing. I’m sure there are ACOG recommendations, although I’m not able to find them right now (a secondhand reference seems to indicate CF testing for everyone). If you are both Ashkenazi or of another small population (French Canadian, Pitcairn Islander, perhaps Sephardi, history of consanguinity in the family, etc.) speak to your OB/Gyn and maybe get a genetics consult. But the diseases in your OP don’t give enough of a basis to run out an justify a lot of in depth exploration (except perhaps for the cancer history but this is doubtful given that 1 in 3 get cancer anyway – a family history of cancer is significant if it occurs in young people, the same kind of cancer recurs, and especially if there is an obvious inheritance pattern) . The technology is always improving, and in a few years we may have better tests. But IMHO I’d seriously consider doing the bare minimum.