Food is generally the most common cause of anaphylaxis. Common food triggers include nuts, shellfish (shrimp, lobster), dairy products, egg whites, and sesame seeds.
The most common time for a scan is about 19-20 weeks of pregnancy. This is the best time to check the baby's physical development. Ultrasound scans can be done at any stage of pregnancy, with signs of pregnancy being seen as early as 5 weeks.he most common time for a scan is about 19-20 weeks of pregnancy. This is the best time to check the baby's physical development. Ultrasound scans can be done at any stage of pregnancy, with signs of pregnancy being seen as early as 5 weeks.
Disappearance of pregnancy symptoms. If the signs of pregnancy (swollen breasts, etc) disappear, it could also indicate a miscarriage. It's often during the ultrasound scan that the end of a pregnancy can be detected. A 'dead egg' can stay in place for 4 to 10 weeks.