Now, let's talk about how to have a Valentine's baby. We can't control the nature of our menstrual cycle but we can at least figure out when a baby will be due based on it. This involves using a simple math equation. To time the estimated due date, take the first day of the last menstrual period, subtract 3 months then add 7 days to get the estimated due date (which may be the following year). In the case of Valentine's Day, the last period should begin on May 7th (because May 7th - 3 months + 7 days = a due date of February 14th of the following year).
Excercise
I think being physically fit is important no matter what you do. It can be a terrific aid for pregnancy as well. I recommend being on an aerobic exercise program before getting pregnant. If you were to choose a program with pregnancy in mind, I'd prefer a low-impact program such as swimming, walking or biking. All these activities are easy on the joints and the baby. I have found that my intense runners and weight trainers tend to ease off considerably during pregnancy due to the changes they experience. This isn't to say that they couldn't continue their routine but they tend to modify it considerably. In addition, vigorous exercise tends elevate the pregnant woman's heart rate above the American College of Obstetricians/Gynecologist's recommended maximum heart rate of 140 beats/minute.
Diet
In anticipation of pregnancy, it is a good thing to get in the habit of eating three healthy meals per day. For those of you who are underweight, expect your doctor to encourage you to eat a little more when you are pregnant. If you are considerably overweight, don't be surprised if your physician encourages you to lose weight in advance of pregnancy. However, there is no specific weight at which pregnancy is unsafe provided that your weight hasn't caused you to have other health-related problems.