I'm guessing now. Could it be that you and your husband, in your dream, are the two elderly people sitting on the porch, and that you are feeling that it is too
stressful to live a boring and dull existence with this man. Your little child may
be feeling that if the porch falls away (the marriage) you could sink into serious
depression.

Wild guess, but if your marriage is in difficulty your unconscious mind may be alerting you to make changes to keep things as happy as possible for your own well-being.

Take care, Bnlsmom.