I stood in the empty field, looking out to the sun setting over the horizon. The red blazing ball of gas was bleeding into the sky. As if it had gotten cut in the ocean and blood was mixing with the roiling salt water and the moon is peaking out the other side of the sky, watching it die. It probably cut the sun and made it bleed. The sun was actually yellow, but to my partially colorblind eyes, it was red and the sky was a hue-y green color. I rested my delicate right hand on my slightly inflated stomach...
5 months pregnant.
5 months since he had left me.
I closed my eyes and let the cool autumn breeze blow through my curly light red hair. I felt a kick in my stomach, but did nothing. Memories flooded my mind, like a tsunami breaking down stone walls made to help protect a tiny coastal town on an island. But instead of water that drowned me, it was my own cruel thoughts coming back to haunt my brain. A gush of warmth washed over my body and the small infant inside of my abdomen thrashed subtly. But even that rush of warmth and joy was tuned out by the sorrow that was filling me. The skirt of my red and white floral print dress blew behind me along with my hair that touched my lower back.
I opened my bright green eyes and skimmed the field again, resting on a little violet flower. It looked so out of place in this orange-ish tan field. Like me. I felt so drawn to the tiny little flower. I felt that I had so much in common with it.
Alone.
Cast out.
My heart skipped a few beats as I thought back to when I knew how it felt to love. How it felt to be loved.
He smiled, his face so close to mine that I swear he could hear my heart pounding inside of my ears. He kisses one of my freckled cheeks and I smile also. His skin is warm against my pale cold skin. It feels rough, not soft and pudgy like most boys. We sat under the old oak tree at the edge of the large field, the last hours of sunlight shining down on us.
His fingers played with the tips of my curly hair. I ran my hand through his ebony head of hair and giggled. I felt so light and feathery, sitting here next to him in the browning grass with the autumn colored leaves casting tinted dapples of light onto us.
“I love you.” He whispered, still smiling like a fool who had just won the lottery.
“I love you too.” I murmured back, my thick Irish accent coating each word that slipped form my lips like a heavy wool blanket.
He laughed and nuzzled his nose against mine ever so gently, as if I were a priceless glass figurine in his large firm hands. Our empty picnic basket rested on the other side of me. His big brown eyes swept over my red dress. The top part was a tight corset, and then at my hips, it began to feather out. It was very retro, but modern and cute at the same time. He pulled me into his strong arms, and my body melted against his.
The infant inside of my stomach kicked again, taking me out of my memories. I blinked away tears, which didn’t work. In all of the books I had read, they blinked away their tears, but doing that just made them roll down your cheeks, so I quickly swiped them away with my index finger.
“Why did you leave me?” I whispered to no one, my hand still on my tummy.
I was so afraid. What if no one took me and my soon to be born baby in? Would we become homeless? Not only had I lost Dylan, but I had also lost my parents. They seceded me when I had gotten impregnated. As soon as they realized that I was puking a lot in the early hours of dawn, I was getting a tummy, which was a shocker because I was so thin, and that I became weaker, then kicked me out. At least they gave me my dresses so I would not freeze to death during the long chilly nights.
But I didn’t ponder long on that. My mind determined to keep me focused on the memories that would haunt my being for eternity. People say that time will erase the bad choices we make, but that’s not true. Time only makes it worse. I’d just like to stab it with a dagger and end it. Btu sadly, it does not work that way.
“Why?!” I yelled out, again to no one.
My voice cracked and tears pooled in my lower eyelids, but I refused to blink and let them run down my freckled face. I looked up and let the sun warm my face, another fall breeze rushing past me. I thought he cared about me. But when I told him I was pregnant, that next morning he just left.
No apology note, no explanation, he just up and left me. I can’t believe I was so naive to think that some gorgeous guy like him could possibly love me. He was just lying to get into my pants. Well, more like my dress since I never wore pants, but same thing. My heart squeezed tightly and I felt sick to my stomach.
There was a change in light and a gray cloud blocked the sun… In a matter of seconds, it began to pour. I heard a crack of a twig behind me and turned on my heel, hoping it would be Dylan, coming right when I needed him most. Or my parents. But it was just a squirrel. I fell to my knees, put my head in my hands, and began to cry.
“Why did you lie?” I sobbed into my hands.
So full of imagery. 
Also, I think you missed to give enough description on how the persona looks like. Maybe, you got a little lost into giving the other things nice descriptions. And I didn't realize that she was a teenager until the last parts of the story.
so sad! I really sympathized with your character here. I know I can't really sympathize with being pregnant; I'm a guy. But I'd be a wreck if I was ever kicked out of my home.