Sperm meets egg, and a baby is conceived. Look at the numbers: There are more than 4 million babies born in the U.S. annually [source: Centers for Disease Control and Prevention]. The odds are good -- about 85 percent of couples who are trying to conceive do so within a year [source: Mayo Clinic]. But when you're a hopeful parent-to-be, every month of trying can feel like forever. To understand when you can get pregnant each month, you'll need to understand the basics of a woman's monthly cycle.
regimen. n. 1. (Medicine) Also called: regime a systematic way of life or course of therapy, often including exercise and a recommended diet. 2. (Government, Politics & Diplomacy) administration or rule.
An example of a context in which the formalization of treatment algorithms and the ranking of lines of therapy is very extensive is chemotherapy regimens. Because of the great difficulty in successfully treating some forms of cancer, one line after another may be tried.