While a pregnancy is often cause for celebration, a character who becomes pregnant accidentally or under adverse circumstances—as the result of an affair or a rape, without a partner's support, or even against her own wishes—might be desperate to keep it a secret. She might struggle with fear or shame, not only about the pregnancy itself but also by what could follow if the news gets out.

Personal or Private

BECOMING A PARENT, BEING A BURDEN TO OTHERS, BEING CAPABLE OF HARM, BEING JUDGED, BEING UNABLE TO ACHIEVE A DREAM, CHANGE, HUMILIATION, LOSING AUTONOMY, LOSING FINANCIAL SECURITY, LOSING THE RESPECT OF OTHERS, ONE'S GENETICS, REGRET, RELATIONAL COMMITMENT, REPEATING A CYCLE OF ABUSE

Having to avoid close friends and family (because they're the most likely to notice something has changed)
Losing access to the people who would offer advice and support; having to go through the situation alone
Shying away from family gatherings
Not being able to pursue desired career opportunities
Being consumed by guilt and shame (for being pregnant to begin with, from constantly lying to loved ones, etc.)
Living in denial and engaging in activities that hurt her health and the health of the baby

Wearing baggy clothes
Running the tap in the bathroom to mask signs of morning sickness
Embracing future plans that would be difficult for a pregnant person (scuba diving, extensive travel, etc.)
Ignoring pregnancy-related medical appointments
Not making pregnancy-related plans (buying maternity clothing, taking prenatal vitamins, etc.)

Gaining weight