Be it 10 min or 30 min or an hour, unprotected sex is still unprotected no matter how long you engage in and as long as it involves penetration , you are at a higher risk of contacting HIV and STDs as described by Ms LIZZIE LOU. Be patient and take your test as told.
having unprotected sex puts one at risk for not only hiv...but other stds as well.
test at 6-8 weeks post exposure for a good indication of your status...but follow that with a test at 3 months for a conclusive result.