LEEP, incompetent cervix, pregnancy?

Has anyone had a LEEP and then had an incompetent cervix because of it? I had a LEEP about 16 months ago and I'm currently 13 weeks pregnant. I'm getting worried about having an incompetent cervix due to the LEEP. The doctor only took off 1/2 inch of the cervix bc he knew we wanted children. Has anyone had an incompetent cervix? What were your symptoms? I'm going to talk to my doctor about it this next week when we go in, but I was curious to hear anyone's personal experience if they didn't mind sharing or advice on what to look out for. Thanks in Advance!