Your syphilis test is fine at the time frame you took it. You can get syphilis and hereps even with a condom but it is low risk, espically if you didn't notice any sores or anything like that.
Thanks Vance2335. I appreciate the quick response. In the last few days I have read a lot of information on stds and a lot of info said that a person can catch some stds during vaginal sex even with a condom on. It also said that quite a few of those stds may not have symptoms on some people. So I am worried about those stds too. STD screening is fairly expensive where I live so i just wanted to make sure I get done the right ones instead of all available.
Also, it has been 2 months since my last sexual activity and I got tested for syphilis last week which came negative. So I hope I can presume that I don't have syphilis now and it wont crop up anytime in the future unless I have sex with a girl again. Is that right?
From oral sex you could get Gonorrhea-test 1 week post exposure, usually shows symptoms in 2-5 days, NGU-test for 1 week post exposure shows symptoms in 7-14 days, syphilis-test for 6 weeks post exposure-shows symptoms as a sore in about 21 days and herpes shows symptoms and test for 4 months post exposure. All STD from oral sex is low risk but possible.