Hello and welcome,
Heartburn in pregnancy occurs because of changing hormone levels which affect the muscles of the digestive tract .Pregnancy hormones can cause the lower esophageal sphincter to relax leading to reflux of acids into the esophagus. Missed period is an earliest sign of pregnancy. Other symptoms and signs suggestive of pregnancy are enlarged sore breasts, nausea, mood changes, increased urine frequency etc.Wait for your periods. If you miss your periods take up pregnancy test. That will help in detecting whether you are pregnant or not. Do keep me posted on how you are doing.
Best luck and regards!
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