Work
A person's job can be a source of stress, especially because of the amount of time spent there each week. The Mayo Clinic states that an overwhelming workload or a difficult boss can increase the level of stress. If a person does not like her job, has a long commute or has altercations with her co-workers, she can experience even more stress. Helpguide.org notes that on the Holmes-Rahe Life Stress Inventory, getting fired from a job is the eighth most stressful life event.
Pregnancy
Pregnancy, too, can be a stressful event. This is particularly true of pregnancies which were not planned, or pregnancies that result in serious complications for the mother, child or both. Another problem is that sometimes couples realize that they are not as ready financially or emotionally for a child as they thought they were.