Most moms carrying twins go into labor at 36 to 37 weeks, as opposed to 40 in a single pregnancy, Al-Khan says, and some may go even earlier. Generally, if the twins are born after 34 weeks, there should not be a major concern, but a premature baby is still a premature baby, he says.
False pregnancy in humans is less common, and may sometimes be purely psychological. It is generally believed that false pregnancy is caused by changes in the endocrine system of the body, leading to the secretion of hormones that cause physical changes similar to those during pregnancy.
Unlike blood pregnancy tests, urine pregnancy tests can display false positive results on account of a number of medications which interfere with the accurate result. Also, incorrect usage of the urine test can lead to false positive or false negative results, too. Claim Your 20 Free Pregnancy Tests â Click Here. The main 6 types of medications that cause false positive pregnancy tests results are as follows. Human Chorionic Gonadotropin (hCG) hormone.