If you are pregnant, it is pretty normal for most people to have an upset stomach most of the time,,try eating several small meals all day and not going more than 30 minutes without a drink...if you are sick to your stomach a lot it is easy to become dehydrated and that can make you feel worse.
I'm not a female, but I assume it's one of the various "obstacles" that come with pregnancy.
Need more information..describe your symptoms please.