The dobutamine stress echo test involves the injection of a medication called dobutamine while you are closely monitored. The medication stimulates your heart in a similar way as exercise. Important: If you have a pacemaker/defibrillator, it must be checked at Cleveland Clinic before your dobutamine stress echo test.
Your Baby During the Second Trimester. The second trimester is normally considered to be from the beginning of the fourth month to the end of the sixth month. This works out in weeks to start from about the thirteenth week of pregnancy.
As such the second trimester will begin as week fourteen and the third trimester will begin at week twenty seven. You can decide which due date calculator and trimester calculation method you would prefer. Your doctor will help you out with this, or there are also various books that also offer advice.