Thanks for your advice. I wasn't really sure about anything so I really appreciate it. I'm probably going to get some test done. Thanks again!
You can go to the health dept and get yourself tested. She can also be tested. Then if you are both clean and don't mess around with new people while you are together, you will be safe. But that's a trust issue.
I'm not too familiar with your chances, but I wanted you to get at least one reply. I know you can get chlamydia or gonorrhea down the throat from giving oral sex. However, that may just be from giving oral sex to a male; it may be much harder if you give oral sex to a female. It is also possible to get mouth herpes in the genitals area and visa versa. You can also spread HIV/AIDs this way, especially if there is any open sores. So yes you can get STDs without exchanging vaginal fluids, although like I said, I'm not sure about the statistics.
If you get a sore throat, thrush, or any discomfort you should see a doctor. If you're uncomfortable with her history you can also ask for her to get a STD test. Just because you don't sleep around doesn't mean you can't get an STD, so its better to be safe than sorry. Many people can carry STD's without symptoms (usually males, but I'm sure females too) and so it's really not unreasonable to ask her to do this for both of your safety.
As far as protecting yourself in the future there are female condoms, you can find these in any sex shop and possibly in the supermarkets. These won't protect against STD's from oral sex, because they're inserted, but they may be able to lower your chances at getting an STD if/when you guys decide to use toys. Also remember to always wash them before putting them away, and personally I don't think it would be too much to ask to use separate toys, especially if you're uncomfortable about her previous history.