On 4th cycle of trying for baby #3. If I get BFN, going to Doctor...anyone else?

Im currently in my fertile week for the 4th cycle of trying baby #3. Im not sure why we haven’t been able to conceive as the first two were easy. That leads me to think something may be wrong. Im 33 (almost 34), so I don’t think age is really a factor. My first two were C sections. After second baby my doctor said i had barely any scar tissue from my first. So, im not sure what is going on, but if I dont get a BFP this cycle, im off to see my doctor. Anyone else in the same boat? Thoughts?