When do you think its time to see a fertility specialist?

It’s been 9 months of trying, tracking, temping, OPK’s, preseed, legs up after sex, maca root, and every other tip and trick in the book.

We had a missed-miscarriage at 6.5 weeks back in March.

We’re both young, healthy, in our 20’s. My cycles are clock work regular, no major issues (that I know of). When do you think we should maybe see a specialist? Should we give it more time? What are your experiences?