Alien, schwangere cupacakeus, imprägnierung

I'm having a midday rest and as I'm resting I feel some energy start to slowly pull me up into the air by my stomach, after being up in the air for a few seconds I'm suddenly crashing back down onto the bed. Now I'm freaked out! What the hell just happened? Next thing I know I feel a sharp pinch in my stomach, so I remove my blankets revealing a now massive belly poking out from under my very tiny shirt. What? I have been impregnated by some kind of alien creature. Whatever this thing inside of me is, it is growing fast and wants to get out. The discomfort of this alien creature growing so rapidly inside me and getting stronger causes me to roll around on my bed. I try standing up to leave to get help, but it knocks me back onto the bed pinning me there. I try as hard as I can but I'm stuck pinned to my bed. Then it happens that feeling of energy again as my belly slowly starts to be pulled high into the air again. The alien that impregnated me has returned to collect its offspring.