Organic milk. A glass of milk. Organic milk refers to a number of milk products from livestock raised according to organic farming methods. In most jurisdictions, use of the term organic or equivalents like bio or eco, on any product is regulated by food authorities.
First Trimester (week 1-week 12) At 4 weeks: Your baby's brain and spinal cord have begun to form. The heart begins to form. Arm and leg buds appear. Your baby is now an embryo and one-fifth of an inch long. At 8 weeks: All major organs and external body structures have begun to form. Your baby's heart beats with a regular rhythm.
Pregnancy is measured in trimesters from the first day of your last menstrual period, totaling 40 weeks. The first trimester of pregnancy is week 1 through week 12, or about 3 months. The second trimester is week 13 to week 27. And the third trimester of pregnancy spans from week 28 to the birth. Your baby will change from week to week.