The most common symptoms of gastritis include: (13) 1  burning sensations in or above the stomach/abdomen, especially around the time of eating. 2  stomachaches or pains. 3  nausea or vomiting. 4  stomach bloating. 5  loss of appetite, feeling very full quickly and possibly experiencing changes in weight. 6  hiccups and burping.
This is NOT true. If you use birth control pills while you are pregnant, the pill will not cause a miscarriage or termination. The hormones in the pill work to prevent pregnancy by stopping ovulation or by causing the thickening of your cervical mucus. So they have no affect on a developing baby.
So, a missed period is not the best sign to rely on to know if you are pregnant while on birth control pills. Other signs of pregnancy can be more telling. Breast tenderness, for example, is one of the very earliest signs of pregnancy. Increased hormones cause breasts to be sensitive and sore, and often to swell. If you are on birth control pills and your breasts suddenly become sensitive and sore, you may be pregnant.