I feel pregnant, but I just had my period

So like, I just got my period and it was pretty normal, but I just feel so pregnant all of a sudden? Not even really symptom wise, just like a feeling inside, and it's freaking me out! I know I'm not because I just bled a lot, and I took a test tonight and it was obviously negative (I mean I drank a lot of water but whatever) IM FREAKIN OUT though. Anything else that could explain this feeling? I don't want to be pregnant so I doubt thats it. It's weird! My only baby is 10 months old, and I feel like I did with her. But like I said I had a period and the test I just took was negative. I guess I just wait for the feeling to go away lol?