Theories of Behavioral Psychology. Behavioral psychology is one of the most fascinating branches of psychology. Learn about key concepts, conditioning and prominent behaviorists. 1  Share.  Pin.
Understanding How Early Result Pregnancy Tests Work. Early results tests promise results three or four days before your missed period. These tests assume a 14-day luteal phase, the time between ovulation and when you get your period. The problem is that you may have a shorter or longer luteal phase.
When to take a pregnancy test. Learn more about timing your tests and find out the average day for the first positive and first negative pregnancy tests. Implantation, hCG, test sensitivity and averages; Are you testing too early? Urine sample vs. pregnancy test result Which urine sample is the best to use? Check out this comparison between all urine samples and the pregnancy test outcome; Evaporation lines - what are they?