Thank you for sharing your dream! Dreams involving babies often symbolize new beginnings, creativity, or nurturing aspects of ourselves. Here are some interpretations of the key elements in your dream:

1. Carrying a Baby Girl: This can represent a new project, idea, or phase in your life that you are nurturing. The baby being a girl may symbolize femininity, intuition, or emotional growth.
2. Breastfeeding and Milk Supply Concerns: This may reflect your anxieties about providing for your loved ones or fears of inadequacy in fulfilling your responsibilities. The successful feeding despite your worries suggests that you may have more resources or inner strength than you realize.
3. Family Presence: The presence of your husband, children, and relatives indicates the importance of family support in your life. Your husband’s smile and affection towards the baby suggest a positive and nurturing family dynamic.
4. The Home and Tree House: This could symbolize a safe space for growth and development. The tree house may represent a desire for adventure, childhood innocence, or a connection to nature.
5. Cleaning the House: Cleaning can symbolize a desire to clear out old habits, thoughts, or emotions. The bugs and goo coming from the fridge may represent unresolved issues or feelings that need to be addressed and dealt with.
6. The Elephant Incident: Elephants often symbolize wisdom and strength. The humorous situation of the elephant pooping on your foot could suggest that you need to not take things too seriously and perhaps a reminder that sometimes life throws unexpected challenges your way, but you have the support to deal with them.

Overall, this dream seems to reflect your nurturing side, your family dynamics, and some underlying anxieties about your capabilities or responsibilities. It may be helpful to take some time to reflect on any new beginnings or changes in your life and how you can embrace them with confidence.

If you have any further dreams or specific elements you'd like to explore, feel free to share!