Brief Answer:
Advise asking her about her history, and consider these tests:

Detailed Answer:
I am sorry to hear about this. Different STDs have different windows of when testing is best. Here is some information about them:

1. HIV: Can test in 2-8 wks but if negative, should test again in 3 months. If you have any immunological deficiencies (such as leukemia) would need to test again 6 months from today. Otherwise the 3 month test is accurate.

2. Hepatitis B or C: Ask her about her status. If positive, go to a doctor for post-exposure prophylaxis.

3. Genital Herpes: Get tested immediately if you develop symptoms (blistery sores) to increase likelihood of accurate diagnosis. An IgG test can detect an infection within several weeks of exposure, but false negatives are more likely during early stages.

4. Genital Warts: There is no test to detect them. If you develop warts, go get them treated.

5. Syphilis: CDC recommends testing for syphilis at 6 weeks, 3 months, and 6 months after potential exposure.

6. Gonorrhea: Get tested 2 weeks after exposure (or if you are having symptoms of discharge or pain on urinating - get tested right away)

I hope this information helps. Please let me know if I can provide further information or clarification.

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Brief Answer:
If you think you have significant risk, consider PEP:

Detailed Answer:
There is post-exposure prophylaxis (PEP) using several medications. This needs to be started within 72 hours after exposure. If you think there is significant risk from your exposure today (for example if your partner is a sex worker or other questionable sex history), then you may want to go thru PEP. These meds do have side effects that can be hard to take for some people.

Here is more information about PEP for HIV:
https://www.aids.gov/hiv-aids-basics/prevention/reduce-your-risk/post-exposure-prophylaxis/

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