Stork bites are flat pink birthmarks, also known as Hutchinson's plaques or capillary hemangiomas. They are the most common birthmarks and are seen in almost half of newborns on the back of the head and neck. They are simply bulging blood vessels in the skin, completely harmless, and usually disappear without treatment by age 2. Later they may reappear, for example, when the baby cries.
When you are drinking through a straw you are taking smaller sips so you have the time to taste and consume the water but when you are drinking it from the cup, it all comes in at once and you consume it differently.
Because in the first weeks of pregnancy it is the developmental stage for major organs so if they embryo is exposed to toxins it could damage the embyro and it could cause developmental damage and stunt the growth of the baby and perhaps give the baby permanent damage throughout the bays life.