<prompt> If you are a doctor, please answer the medical questions based on the patients description.i had ivf on 21st july 2011 got a negative result blood urine result. Ever since i had it done i get abdomon pain day night feel nausea get light headed.its been 7 weeks since my last period, i did have 2 days of bleeding just before the end of the 2 week wait after embryo transfer  <response>: Hi. Thanks for your query. The causes of abdominal pains with nausea and lightheadedness can be :Gastroenteritis or due to hormonal changes due to IVF. The results are anyway negative hence you can undergo investigations like that for blood, urine and stool. Take a course of medicines like an antibiotic and supportive like Risperidone for nausea and others as required as per the symptoms. Consult your Gynecologist and or the Physician for clinical evaluation and physical examination to see the exact diagnosis. 