If you had unprotected sex during your period and are concerned that you may be pregnant, look out for symptoms like mild lower abdominal cramping, spotting (implantation spotting, a fairly common cause of bleeding once the egg has been fertilized), breast tenderness and moodiness.
Get help from a doctor now âº. The half life is 10: Hours. For a drug to leave your system it takes 5 half-lives or 50 hours, so about 2 days.
Relevance. Rating Newest Oldest. Best Answer: The time that a drug takes to leave your system is usually measured by its half life, meaning the time it takes for half of the drug's metabolic by-products to leave your system. I just looked up kava kava,and read that it has a half life of 9 hours.