Fertility Help

So my husband and I have been TTC for 5 cycles now. I’ve been keeping track of everything and taking opk’s. This past month I even bought the clear blue opk’s with the smiley faces. Since we’ve been trying I haven’t gotten a single positive opk. I’m getting really frustrated. I have a history of ovarian cancer and had my left ovary and fallopian tube removed. My question is if I make an appointment will a doctor do anything for me since it’s only been 5 months?