Hi, thanks for your question. It sounds like the tip of your penis was exposed to vaginal fluids and there is a possibility of getting an sti this way. Two weeks post exposure is the earliest time to test for sti’s that are passed in the sex fluids. If you have not had a recent check done or you have developed some symptoms like a discharge from your penis and/or burning when peeing, then going to an sti clinic for assessment and recommended testing and treatment is advised. You can find an sti clinic near you through https://smartsexresource.com/get-tested/clinic-finder
Let us know if this does not answer your question or if you have any more questions or concerns.
Health Nurse