Micro pigs will collect straw and other available materials to build a nest shortly before giving birth. Once the nest is built the expectant mother will usually bury herself until labour begins.
This is an instinctive and natural behaviour.
Watch a micro pig building her nest http://youtu.be/B3F84hDUyAU
Picture: Micro pig nesting

About admin
I am intelligent, very affectionate and will reward loving owners with many years of companionship. Depending on my generation I will be 14’’ – 20’’ high when I am fully grown. I will always remain tiny compared to a farm pig and be smaller than any other pigs you are likely to meet. I am happiest being the only piggy of the family but do not like being alone. I really enjoy time indoors with my owners and will not leave fur or hair on carpets and furniture, many people with allergies think I make the perfect pet. I am a pet pig and I need my own space, outdoor space where I am free to root and be myself. I will be lonely and bored without your company so if you cannot be with me, please let me have a piggy friend to play with. I do not smell and I am extremely clean. I can be litter trained quickly and will learn more tricks than dogs and cats because I am smarter. I can be taken for walks but feel equally content staying at home. I am cheap to feed and will live over 10 years if you look after me. I like being fit and healthy and do not want to be fat.
I am a pet micro pig
Oink, oink