So there's a HIV risk even from very brief exposure?
Yes, you should be tested for HIV, syphilis, chlamydia and gonorrhoea and hepatitis B.
In the UK you can be tested for chlamydia and gonorrhoea from 7 days and HIV, syphilis and hepatitis B from 28 days. I am not sure from your post where you live. I would strongly suggest that you test before you have unprotected sex with your wife.
best wishes, Sean