Hi Lesiley,
Here is a link where you can read all you need on CMV, a sort of herpes.
Cytomegalovirus during pregnancy | BabyCenter
As you will read, if you have been infected up to 6 months before getting pregnant, you have developed antibodies (positive Igg - negative Igm) and you and your baby will be fine. If you have been infected during your pregnancy or in the 6 months preceding your pregnancy (positive Igm - negative Igg), then it might be dangerous and you will probably get a treatment to prevent harming your baby.
Same thing applies to Toxo. If you have been infected in the past (positive igg - negative igm), you are now immune and don't have to worry. If you have been infected recently (negative igg - positive igm), then doctors will tell you what to do. If have never been infected, you are not immune and have to be careful. Toxo is trasmitted by cats faeces. So theoretically any food that might have been in contact with cat faeces can be contaminated with the bacteria, especially raw and cured meat, vegetables, fuits... that's why it is important to wash thoroughly fruits and veggs or to cook them and to avoid raw meat. The fact that you do not own a cat (which is not that dangerous by the way if you follow basic hygienic rules, I have so many friends with kids who had cats in pregnancy) does not mean you can not get the bacteria from contaminated food. I am lucky!! I am Toxo-immune, so I can afford eating ham and salame from time to time

Still, I prefer not to eat raw meat to avoid other nasty bacteria, especially listeria! But I am kind of paranoid of this, I have to admit...
So I would personally go for the tests.
I am unable to help on the irregular antibodies, sorry! I can just google it, but I would only be copy-pasting for you
