Requested by @CholBoeDonutzz 

Prologue kinda I guess: Bakugou is someone who doesn't know about periods or anything. So one day while going to the bathroom in your house and snooping like any pomeranian would he from a plastic stick with cotton in it and really small diapers.

(Y/N)'s POV

There he is finally. "What are these?!" You looked at him standing in the doorway of the bathroom holding up what were pads and tampons. "Is there something your not telling me? Do you have a child?!" You started to laugh at him. He blushed and got angrier "HEY! ANSWER THE DAMN QUESTION (Y/N)!!" He never yelled that loud. He was being serious about the baby thing. "Baby no i-." You were interrupted by more shouting. "QUIT LYING TO ME (Y/N) YOU DO THIS EVERY TIME!" You looked at him confused. "Every time what?" He put what he thought to be diapers and nosebleed stoppers on the counter. "Once a month you make excuses for everything! Why you don't want to go out, or why your stomach hurts! You also get really bitchy!!" No one called you a bitch especially not your boyfriend and especially not now. "Get out...." He furrowed his eyebrows and stared at you. "What?" You raised your voice high than you should've. "I SAID GET OUT OF MY HOUSE BAKUGOU!" He stood there shocked. This hurt him, but he wouldn't show it. He made a 'tch' sound with his mouth and walked to your front door and out it. You were sad now, to say the least. You wanted nothing more than to have him by your side right now, and you ruined it because he was losing his temper like always. You shed some tears while watching some random movie on Netflix and fell asleep.

*time skip*

You woke up to your phone buzzing like crazy. You looked at it, it was Bakugou. After the mini fight, you and Bakugou had you didn't feel like answering the phone so you let it go to voicemail. You shut your eyes once again not wanting to stay awake with the fact that you shut your boyfriend out. Your phone started to buzz again you knew that he wouldn't stop calling until you answered. "Hello?" He said in what seemed to be the calmest tone you've ever heard him speak in. "Hi." You said in a snarky tone still being very pissed at him."Look (Y/N) im really sorry for the way that I reacted I didnt mean to speak to you like that. I didnt know what was going on with you right now and those things that i found i first know what those are either." You were surprised by 2 things. One your extremely loud and hot-headed boyfriend just apologized in a calm tone, and two how did he figure out what was happening. Did he google it or some shit? "How do you know what's going on right now if you didnt before?" You could hear him sigh. "I asked my mom. She said that you were in a lot of pain and she explained what those things were and what a p-p-period was." You could tell he was grossed out by the thought of it all. "I forgive you katsuki." You could almost picture his face when you said that. "Really?" "Of course now get over here i want cuddles." He chuckled. " You dumbass I've been outside for the past 20 minutes." You looked out your window to see Katsuki with a basket full of things you could not make out. You rushed down you stair to the front door where he was holding (Y/F/F), movies, one of his hoodies, different snacks, and pain medication. You looked at him with teary eyes as you jumped at him to give him a hug which he nearly fell over from. He placed the basket down and hugged you back tightly while he kissed the top of your head. "Baby," He said and to which you looked at him. "Hm?" "The ice cream is gonna melt and we have movies to watch." You jumped down. "Right and dont forget my cuddles." You said as you walked inside the house. "I thought that was a necessity." He said as he picked up the basket and walked into your house closing the door.