With your history and symptoms, it is ideal to get a blood test
and see a specialist at the earliest for better care if you find you are pregnant. Otherwise, it could be a hormonal
disturbance that is causing the delay and you need to be treated for that. The cause of your previous abortions should be elicited as this tends to have an effect on your future pregnancies. A trans-vaginal sonogram almost rules out a tubal pregnancy. Take further instructions from your doctor. Good luck.