Piercing pain by c-section incision

Nicole
Hi Everyone,
I'm  currently 5 weeks pregnant and experiencing a sharp, stabbing pain by my c-section incision.  I have an appointment with my doctor next week to determine the cause, but I am curious if anyone has experienced this after delivering by c-section.
I had my son a year ago and was advised to wait MINIMUM 6 months prior to attempting to get pregnant again, but ideally 18 months to wait would be best to allow everything to "fully heal" (as per my OB).