STD syptoms right after sexual contact?

This came up recently and I thought I would post an article that I found.....



Sexually transmitted diseases (STDs) include a multitude of infections, from HIV (the virus that causes AIDS) to urethritis (inflammation of the urethra, the tube that carries urine from the bladder). Some infections are caused by viruses, others by bacteria, and some are even due to parasites. It is very difficult to generalize about any group of infections as broad as this one. However, it would be highly unusual for any infection transmitted by sex to manifest itself so quickly.

The incubation period of an infection -- the time from exposure to first symptom -- varies considerably among different STDs. Genital herpes virus infection has a very short incubation, but it is still almost always at least 48 hours. Although gonorrhea also can have a very short incubation period, at least two days is the rule here too. Chlamydia usually takes more than a few days. Trichomoniasis, an infection caused by a protozoan (single-celled organism) and a very common cause of vaginitis (inflammation of the vagina), usually has an incubation period of at least five days.

To answer your question, any symptoms you develop within 24 hours of an unprotected sexual encounter are unlikely to be related to an STD. This, of course, assumes that you did not have sexual contact at an earlier time.