What should I do?

My last af was Oct 21st. Since then I haven't spotted,cramped, NOTHING! All test bfn. I went to the doctor had my hormones tested everything came back normal and negative pregnancy test. My doctor told me everything is normal so I'm fine....but it's not normal to not have af for almost 2 months. I'm 29 no children as of yet and have been TTC for 7 years. My husband and I have been trying to stay positive about this but I am really worried. my doctor hasn't offered any help or explanation for what's going on with me. I NEED ADVICE!What should my next steps be? finding a new doctor?