Bloating and period weight gain

Anyone else bloat really easily? Not just during their period? I bloat easily normally after a big meal or one with lots of carbs. But when I'm on my period I bloat severely. I look huge. Literally 7 months pregnant. I'm not thin (more so chubby-curvy with small waist,large breasts and hips) but there is a huge difference between how I look normally and how I look before/during my period. ALSO before and during my period I gain anywhere between 5-15 lbs. but I usually lose it after it's over (plus a little more since I am dieting and excercising) . If it matters, I'm 19 years old. It has been like this since I was 18.