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.
This is because the firmness of it depends on how much fat is underneath the skin. In general, most women begin to experience what they describe as a full and firm abdomen by 20 weeks, or close to the end of the 2nd trimester. I would not worry much if your belly doesn't feel like you think it is supposed to.