Elizabeth Tudors little siblings

What if Anne Boleyn went into labor when she caught Jane Seymour kissing her husband and she gave birth to quadruplets and she died in childbirth and the boys looked like Henry his youngest daughter looks like Anne? What would Henry do if Jane Seymour and her family conspired to kill them? Henry misses Anne terribly and feels sad she left him will he move on? What if he decided that his youngest daughter and Princess should marry a Prince of Portugal to make a alliance and his sons married into influential royal families? (When she goes into labor she's nine months pregnant)