The body of where Fertilization take place after the exposure of Ivy's 'spark' to Megatron's one sperm dive into the the nucleus of the egg and the sperm combine into a forming mass of cells that travel to a heaven aka the Uterus.
The Chromosones are cloned and separated during this said trip. However during the first three weeks...The body becomes coated in liquid prot-matter that had spread out from the forming mass shielding the fetus. It unrolls from a parasite like appearance to a baby structure.
Through the five to eight weeks;wiring forms beneath the skin, a mold for the genetic features is outlined in black and light gray similar to a protoform-except for the face still being winkly and undetermined,eyes formed closer together, the sparkling begins sucking on one thumb (Left one), soon it begins hiccuping without really making noises.
The little one gains audios, it slowly opens its light blue eyes inside the dark black uterus and blinks a few times to develop the blinking reflex.
Inside Speedstinger's Uterus in the first chapter of Shattered Lives where Major Wedge is about to attack her...The sparkling did a startle reflex perhaps to self preservate itself from loud, wild noises unknown why to the medical field.
The Sparkling hops and plays inside the Uterus to practice walking and jumping like on a tramperlene.
During the ninth to tenth week; the sparkling's anatomny reconstructs to a different format sorta resembling much of a combined version between Lockdown and Bumblebee with a Batman design slowly growing. The shoulders grow bat-man like symbol serving as plowers. His helmet became bulky like attached to a large neck.
His legs gained feet resembling his fathers, his arms resembles his dads with one small fusion canon on his left arm,his chest grew the windowshield of the batmobile, three marks similar to his dad appeared to the side of his face and on his chin.
Two months later,he has became the size of large football. He was so big that he nearly made a great wound on the uterus path out to the world. He was shrunk into a totally different size for the sake of SpeedStinger.
He opened his optics to see his first uncle Starscream and Aunt Antagony, then his dad Megatron and mother SpeedStinger and his other Veteran Uncle Blitzwing.. Then his last Uncle Lugnut.
"Welcome to the world, Blachgage." Speedstinger cooed at her newborn son, who had went though a safe heaven for at least four or some months.