Dallas County Appraisal District, Rockwall Central Appraisal District Listed below are the exemptions and the amount offered by the City of Rowlett. The exemptions must be filed with the appropriate Appraisal District. If the exemptions listed below are filed by May 1, the exemption will show on the original tax statement.
Detecting a Fetus on Ultrasound. A fetus can be detected as early as the sixth week of pregnancy. Many ultrasound technicians prefer to wait until at least that point in the pregnancy to do an ultrasound and many prefer waiting until the eighth week of pregnancy when more of the development of the fetus can be seen. Finding a Fetal Heartbeat.
The evidence suggests that ultrasound is more accurate than the last menstrual period date in predicting when the baby will be bornâbut only in the first trimester (weeks 1 through 12) and early second trimester (until roughly 20 weeks.) During the first 20 weeks of pregnancy, the margin of error is roughly 1.2 weeks.