I think it should be required. You need to make sure that the baby developing inside of you is healthy and growing correctly. You also need these tests to ensure the moms safety during the pregnancy. And no i don’t think you should have to cover the cost.
Hans Selye described three predictable stages the body uses to respond to stressors, called general adaptation syndrome (GAS). ... In the second stage, known as the resistance stage, the body attempts to resist or adapt to the stressor. The last stage is known as the exhaustion stage because energy is depleted.
One property that is shared by both human and bacterial cells is the Genetic code, which describes how the sequence of nucleotides in the gene's DNA and RNA are translated into the amino acid sequence of the protein.