THC Drug Test. A marijuana drug test is the technical analysis of a biological specimen, such as urine, blood, hair, sweat or saliva, to determine the presence or absence of the active ingredients of marijuana (mainly THC) or its metabolites (breakdown products).t is important to note that urine tests are usually conducted to test for the presence of THC metabolites which indicates marijuana use. Blood tests are conducted when the amount of THC still present in the system has to be ascertained.
How is my due date calculated? Your due date is calculated by adding 280 days (40 weeks) to the first day of your last menstrual period (assuming a 28 day cycle). Note that your menstrual period and ovulation are counted as the first two weeks of pregnancy. If you deliver on your due date, your baby is actually only 38 weeks old, not 40.
Pregnancy Conception Calculator. The Pregnancy Conception Calculator can help to find out the pregnancy conception date based on the pregnancy due date.The pregnancy conception day is the day when your baby is conceived.Correspondingly, this calculator will also give the range of days during which sexual intercourse might have led to the conception, based on the factor that sperm can live inside a woman for three to five days.regnancy Conception Calculator. The Pregnancy Conception Calculator can help to find out the pregnancy conception date based on the pregnancy due date.