My boyfriend really thinks I’m pregnant

For the past couple days he’s been complaining how tired and exhausted he’s been. We been doing the bd a lot but taking breaks. The only difference with me is I’m super tired 😓 and sleepy. Boobs grew and or somewhat tender. Last night I spent the night at his house we did the bd went to sleep. Before dropping me off to work he asked if I’m sure I ain’t pregnant and to buy a test. He words were he haven’t felt this way since he son was born.who is now 5/6.