Interstitial cystitis can certainly be a possibility. Typically, this can present as pain, pelvic pressure, or urinary urgency in any combination. Of course, I would assume that common things like a UTI as well as STDs have already been ruled out.
To diagnose for this, a potassium sensitivity test can be administered at a urology office.
Other tests to consider would be a cystoscopy - which can evaluate the bladder for any signs of disease that may lead to the symptoms.
I am not aware that institial cystitis being a contraindication to pregnancy - however I cannot make a more informed comment on this without examining you. I would discuss this with your personal physician or in conjunction with a urology evaluation.
Followup with your personal physician is essential.
This answer is not intended as and does not substitute for medical advice - the information presented is for patient education only. Please see your personal physician for further evaluation of your individual case.
Kevin, M.D.
Medical Weblog:
kevinmd_b