1 Use moderate intensity, which is sufficient to improve cardiovascular fitness, muscle strenght and flexibility. 2  Perform exercises regularly: cardiovascular exercise: 3 to 5 times per week, strenght training: 2 to 3 times per week.
The pregnancy starts from the first day of her last menstrual period. Normally 2 weeks before ovulation. An ultrasound is the most accurate way to determine pregnancy dates. So yes, she can be 6 weeks and 3 days pregnant even though you only met 5 weeks ago because two of those weeks were before conception.
1 Calculating the gestational age from the conception date is more accurate. 2  It is the preferred way of the medical textbooks. 3  How far along you are in your pregnancy (from the first day of the last menstrual cycle). 4  Calculating the gestational age from the from the first day of the last menstrual cycle is more practical. Sperm lives for about 2 days. Because of the uncertainly of the exact conception date, obstetricians prefer to calculate the fetal age from the first day of the last menstrual cycle.