I'm new at this. help!

Tiffany
Just started TTC on my honeymoon about a week and a half ago. I took a pregnancy test this morning and it was negative, I've been feeling different though (but I've also traveled and have been jet lagged) is it possible that I've taken a pregnancy test too early? My period isn't suppose to come for another week or so. Help! 
Also how soon have you felt symptoms, and what are your symptoms?