Task: Question Answering
Input (English): Context: Last Tuesday , I was told I probably had a blighted ovum . I was supposed to be 14 weeks but measured 10 . I go back to get the test results today , but my question is : Is it possible to have pregnancy symptoms when you have a blighted ovum . I ' ve always had the symptoms , but last night , my breasts started having the tender feeling they did at the beginning of my pregnancy . 
Question: What may be an odd occurrence when one has a blighted ovum ?
Output (English): A false positive on a gravid test is common .