It could also be that she values her privacy a great deal. Some people are just more private by nature. She may think that her stories are her own personal business and doesn't feel the need to share them. Another reason could be stress. If she has a lot on her plate, she may not have the energy or mental capacity to talk about her experiences. She might just want to relax and not have to think about retelling things.
She might be afraid of being judged. Maybe in the past, when she shared something, she got a negative reaction. For instance, if she told you about a mistake she made at work and you got angry or critical, it could make her hesitant to share in the future.
There's a possibility that she doesn't think you'll be interested. If you've given the impression in the past that you're not really listening or that you seem disinterested when she does talk, she'll be less likely to share. Also, if she has had some bad experiences sharing with others in general, not just with you, it can make her reluctant to open up to anyone, including you.
Perhaps she has some body image issues. If she doesn't feel confident about her appearance, she may be reluctant. Also, a lack of privacy in the living situation can be a cause. If she constantly feels that there is no private space for an intimate moment, it can put her off. Moreover, if there is a lack of communication about sexual needs and preferences between the couple, she might not feel comfortable and thus be reluctant.
She might be an introvert. Introverts often feel drained in social situations like parties. They prefer quieter, more intimate settings and large parties with lots of strangers can be overwhelming for them.
One reason could be her loyalty to her husband. She may truly love him and the idea of being unfaithful in such a way goes against her moral and emotional commitment. In many relationships, loyalty is a fundamental value, and she might not want to break that trust.
She might be shy. Shyness can often make a person reluctant to engage fully at the start. Maybe she's not used to the situation or the people involved in the story.
One reason could be the lack of personal freedom. A woman might be used to having her own time to pursue hobbies, a career, or just relax. Having a child means sacrificing a lot of that time. Another reason is the financial aspect. Raising a child is expensive, from diapers to education. Also, the fear of the physical and emotional stress of pregnancy and childbirth can make a wife and mother reluctant.
One reason could be that she is not used to being the center of attention. She might be a very private person and having a photoshoot makes her feel exposed.
One reason could be stress. If she has a lot on her plate at work or in her personal life, she may not be in the mood for sex. Another factor might be relationship issues. For example, if there have been recent arguments or a lack of emotional connection, it can lead to reluctance. Also, health problems, either physical or mental, could play a role. For instance, hormonal imbalances can affect a woman's libido.
Another reason could be related to personal goals and independence. She may have her own career or personal development plans that she fears would be derailed by pregnancy. In a cuckold relationship, she might already be struggling to define her own identity and place, and pregnancy could seem like another factor that would limit her freedom and ability to pursue her own dreams.
It could be that she was pressured in some way. For example, if the situation was affecting others and she was urged by those around her to tell what she knew. Also, it might be that she saw no other way out of a difficult situation. Say there was a misunderstanding in the family, and by sharing the story, she hoped to clear things up, even though she was reluctant at first.
One common reason is fear of the unknown. Camping often means being in an unfamiliar environment, away from the comforts of home like a proper bed and a clean bathroom.