Critical Thinking vs. Shariah Part 79 Divorce

The Sutliffian Report uses #CriticalThinking to ask questions about #shariah. If a #Muslim marries a #slave why is she still called a #slave when he divorces her? If shariah is Allah's perfect law, why did Allah not know that period means a woman is not pregnant? Why does Allah think an Idda of three months is important? Why does Allah think a woman can give birth between 6 months and 4 years? #pregnancy