Symptoms of just 15 days of successful conception include nausea, vomiting, dizziness, fatigue, loss of appetite, chest swelling and other early pregnancy reactions, or there may be no symptoms at all. Symptoms of early pregnancy are dominated by nausea and vomiting, which can occur at any time of the day or night, but occur more often in the morning due to the irritation of the throat during morning brushing, when pregnant women experience acid reflux, nausea and vomiting. Due to pregnancy vomiting, eating less, easy to lead to pregnant women with low blood sugar, causing dizziness, fatigue. And pregnant women feel self-conscious about loss of appetite, bloating and indigestion. As the hormone level starts to increase, estrogen will promote the growth and development of breast gland ducts, and progesterone will promote the growth and development of breast gland follicles, there may be a feeling of having breast bloating. When the above early pregnancy reactions occur, it is recommended to consult a doctor promptly to clarify whether you are pregnant or not.