It is important to note that the only way to confirm pregnancy is through a medical test or consultation with a healthcare professional. However, some of the symptoms you mentioned can potentially be associated with early pregnancy. Fatigue is a common symptom due to hormonal changes in the body during pregnancy. Excessive saliva production (known as ptyalism) can also occur as a result of hormonal fluctuations. Food cravings are another possible symptom caused by hormonal changes and increased blood flow to the pelvic region. Gastric issues such as bloating or indigestion can also be experienced during early pregnancy due to hormonal shifts affecting digestion. However, it's crucial not to rely solely on these symptoms for a definitive diagnosis as they can vary greatly among individuals and may have other underlying causes unrelated to pregnancy. If you suspect you might be pregnant or are concerned about your symptoms, it is recommended that you take a home pregnancy test or consult with a healthcare professional for further evaluation and guidance based on your specific situation.