dude what the fuck

Nicole • I'm 17
Ok ok... so I'm here laying in bed I feel like I wanna puke. Ok? 
Well I been going number to awhile.
So I'm just laying in bed and I put my hand on my stomach I feel like 2 heart beats now I just thinks that's me or do we have another heart in our stomach we didnt know about? 
My bf has never came inside me. He pulls out all the time but sometimes he pulls out a little early and jacks off for 5 seconds then cums
Some times he pulls out and cum right away
But still. I felt 2 heart beats and my stomach feels alittle hard. But I also have constapation. But I felt 2 HEART BEATS IN MY STOMACH. 
Tell me I'm not crazy because I'm dead scared