You can get rather hungry in early pregnancy, i definitely was when i was UTD in Nov... because as soon as your body starts producing hcg, it is working overtime hence you are using more energy, even just sitting still! so yes, you can get hungrier... some people do early on and others get hungrier after 5weeks or so, it just depends on each person and each pregnancy. I would do a test if i were you, with FMU. GL!
and yes you can get indigestion too! thats a pregnancy sign!