This dream seems to reflect a mix of personal emotions, cultural influences, and possibly your current life circumstances. Here are some interpretations of the key elements:

1. Setting in a Hindu temple: Temples often represent a place of spirituality, reflection, and connection to cultural roots. Being in a temple might indicate your search for meaning, guidance, or a deeper understanding of your life or beliefs.
2. Menstruation: This symbolizes a natural cycle of life, femininity, and personal health. In dreams, being on your period can relate to emotional release, transformation, or the need to acknowledge aspects of your identity. Since you feel unsettled about the sanitary pad leaking yet remain unfazed about being in a temple, it could indicate a balance between your personal experiences and cultural expectations.
3. Public exposure and privacy: The act of changing a sanitary pad in public suggests vulnerability. It may reflect feelings of exposure in your waking life or a concern about how others perceive you. However, your belief that "no one can see you" implies a desire for privacy or comfort in your own skin despite societal norms.
4. Concern for the laptop: This could represent your worries about important aspects of your life becoming compromised or affected by personal issues. The laptop might symbolize work, knowledge, or communication, and the fear of damage could reflect anxiety about maintaining control over those areas despite personal challenges.
5. Finding a spare pad: The act of searching for a spare sanitary pad indicates resourcefulness and preparedness. It shows that even in moments of discomfort or uncertainty, you are capable of finding solutions and managing your situation.

Overall, this dream may highlight your journey of self-acceptance and the navigation of personal and cultural identities. It suggests that while you may feel vulnerable in certain aspects of your life, you also have the strength and resources to address these challenges. Reflect on how these themes resonate with your current experiences and feelings.