Confused πŸ˜•πŸ˜•πŸ˜•πŸ˜•

I had sex on Thursday of last week. Now it's Wednesday and I've been feeling strange. I feel like throwing up, but I can't. I won't be getting my period until another 18 days & I really don't want to take a pregnancy test yet ( Highly hope I end up being pregnant) just wondering if this is a sign!?Β