In Pennsylvania, assault is a crime that can be a misdemeanor or a felony. A person commits an assault when he inflicts (or attempts to inflict) a physical injury on another person.
When measured from conception it is about 38 weeks. An embryo is the developing offspring during the first eight weeks following conception, after which, the term fetus is used until birth. Symptoms of early pregnancy may include missed periods, tender breasts, nausea and vomiting, hunger, and frequent urination. Pregnancy may be confirmed with a pregnancy test.
In that system, pregnancy starts on the day of ovulation (usually the day of conception) and lasts for 266 days (38 weeks). In both systems, the due date is exactly the same. It only makes a difference in calculating how far along you are during a pregnancy. For example, in the American system, the first trimester ends at approximately week 12, whereas in the other system, the first trimester ends at approximately week 10.