Second opinion?!?

My husband and I have been TCC for a we months now... I haven't been very regular with my pds my whole life but the past few years have been really bad to the point where I don't get it at all.. and then I would get it every 2 months but now I had it Sept 11 and lasted 27 days didn't have it for 4 days then got it again for 8 days then nothing for 5 then got it again for 15 days! I went to the gyno and all she has me doing is writing everything down on a piece of paper! I really think she should be doing more.. should I go get a second opinion? My husband's mom has stage 3 breast, bone, lung and colon cancer so we would really like her to see her grandchild before she passes so this is a big thing for us right now