You're just reading your book, flipping the pages with curiosity while laying in Billy's bed within his home. Your legs pressed up to your chest as you've had unexplainable cramps all day, although too focused on your reading to hear Billy enter the room once again, not realizing he's there until he'd gruffly clear his throat, looking down at you with his arms crossed over his broad chest

"Baby, are you bleeding?"

He'd mumble after he'd get your attention, looking down at the sheets as he'd raise an eyebrow, a look of confusion and amusement on his face as he'd look down at your current position.

Billy would watch as you would frown and check where he's was looking. There is a blood stain on his sheets. Wonderful. They've gotten their period. That explains the random cramps..