I just started tummy time. How long should bub last before she starts wailing and I put her back on her back?

I normally do tummy time for baby after their bath where they feel more alert and happy. For young babies, about 5-10mins will be sufficient. If your baby seems to be contented to be placed on tummy, you can extend the session longer than 10minutes. Avoid placing them on tummy time after a full milk feed as will cause vomiting. You can purchase this tummytime pillow for your LO http://www.amazon.com/Boppy-Pillow-Honeybee-Discontinued-Manufacturer/dp/B00AIVN8EQ Alternatively you can just use a rolled towel and place under baby's arm for him to feel more comfortable, as shown in the picture.