Hi,
Noted your history and understood the concerns.
Since you had protected sex the
pregnancy may not be the cause, passing blood blocks may actually be just clots and hence may be normal periods again confirming no pregnancy.
The cause of pain in abdomen, nausea may be related o infection in the intestinal tract and thus needs the following:
Send the sample of stool and blood for lab.
Consult your Doctor for clinical evaluation and correlation with reports.
He may start you on a PPI like
OMeprazole and
Domperidone for nausea.
If there is any evidence of infection then he may add antibiotic,
metronidazole and probiotics along with symptomatic and supportive therapy.
Once the nausea gets settled take plenty of oral fluids.
If still no relief ask for
ultrasonography and other tests as needed.
Hope I have answered your query. Let me know if I can assist you further.
Regards,
Dr. T. Chandrakant, General Surgeon