Had a lot of sex the day before I was expecting my period now 5 days later and have not had start Could be pregnant Do to wait like 28 take test?

If you had unprotected sex, it is possible that you could be pregnant. However, it is too early to take a pregnancy test at this time. Pregnancy tests work by detecting a hormone called human chorionic gonadotropin (hCG), which is produced after a fertilized egg implants in the uterus. It typically takes 6-14 days for hCG levels to become high enough to be detected by a pregnancy test. Therefore, you should wait until at least 7 days after your missed period (or 28 days since your last unprotected sex) to take a pregnancy test. If you take a test too early, it may not be sensitive enough to detect hCG and you could get a false negative result.

If you are still concerned or do not have your period after 28 days have passed since your last period, you should consider taking a pregnancy test or consulting with a doctor.