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.
In the first trimester, gestational sac mean diameter and crown-rump length measurements have become the primary means of evaluating gestational age. 15, 16, 17, 18, 19 In the second and third trimesters, fetal head, body, and extremity measurements have been commonly used to assess gestational age. Physical examination also tends to be inaccurate, especially with advancing gestational age. 10 Bimanual examination in the first trimester may be accurate within Â±2 weeks; however, fundal height measurement, which is more commonly used to assess gestational age, is only accurate within Â±4 to 6 weeks.