Write a Python function `find_words_starting_with_p(words)` that takes a list of strings as input. Each string contains multiple words separated by spaces. The function should return the first two words from the first string in the list that start with the letter 'P' (case-sensitive). If no such pair of words exists, return `None`.
#### Example Usage
```python [main.nopy]
find_words_starting_with_p(["Python PHP", "Java JavaScript", "C C++"])
# Output: ('Python', 'PHP')
find_words_starting_with_p(["Python Programming", "Java Programming"])
# Output: ('Python', 'Programming')
find_words_starting_with_p(["Pqrst Pqr", "qrstuv"])
# Output: ('Pqrst', 'Pqr')
find_words_starting_with_p(["Java JavaScript", "C C++"])
# Output: None
```