Conception can take up to 5-8 days to happen. Even then, your body is probably not producing enough Hcg to be detected on a pregnancy test. Usually you will get better results if you wait 5 days before your missed period. If you don't know when that is, wait about 15-20 days after the unprotected sex occurred. You can start feeling symptoms 7 days after. This can be things like fatigue, nausea, backache or headache. Your breasts will also start to get tender and you will be really emotional. You usually don't start peeing a lot until 6-8 weeks after conception.
