2nd time...

Well I guess I have to accept that I failed my 3 hour by one point and they are sending me to a diabetes educator soon. I had gestational diabetes with my second pregnancy last time, but I failed the one hour so bad I never had to take the 3 hour, and I ended up having to be on 2 different types of insulin. What I'm wondering, is if since I only barely failed this time, do you think that's an indication I might just be able to control it with diet alone, or do you think it's just because I was tested so early this time (only 15 weeks now) that it just hasn't gotten as bad yet? Any thoughts?