 [ Symptoms ] irregular period last month it came one week early period is 6days late i had sex 3 days before period no craps preg  age 16  irregular period last month it was one week early i was due once again on the 2nd of this month i am now 6 days late and no craps i had sex 3 days before the 2nd  bf ejaculated small amount inside me i have been on antibiotics late last month early this month i had a cold about a week ago as per an android app i ovulate around the 26th i had sex around that time but bf did not have an orgasm inside me high or low chance of being pregnant [ Disease ] i am sorry to hear you are going through this it sounds miserable and worrisome i want to emphasize your need to stay hydrated even if drinking water gives you nausea maybe try drinking water at different temperatures to see if one is more palatable than another or see if there is a vitamin water flavored water or type of sports drink you can tolerate despite the fact you have been tested for celiac and other conditions in the past my advice to you is to keep pursuing a cause for your symptoms some conditions take a long time to be diagnosed such as gastroparesis sometimes tests need to be repeated periodically and the results compared in order to reach a diagnosis it is ok to be very pro active with your health care providers in pushing for additional testing or repeated tests depending on how much time has elapsed in order to get a diagnosis i would suggest keeping copies of all your lab results and imaging films usually these can be provided to you on cds for easy storage you will want to keep these for new doctors you may consult and for comparison of test results over time i wish i had some magic suggestion to offer you in terms of a diagnosis but that is not the case like i said hang in there and do not give up just because you have had a few tests done keep going back to your providers to let them know you still have symptoms i wish you all the best