Anyone help me please....

My bf and I been ttc for a year and 3 months. it took my mom a year and 6 months to conceive i dont know if that ties in. We went to the doctor and had tests and everything was great. His morphology was a little low has to be 4%, was 3.5%. They said it’s not a huge issue. But it’s been months now since then. We’re looking into fertilaid or fertilprep anyone know which is better? Should i take any or its best if he does? Advice please! experiences anything will be great! TIA❤️