Any Suggestions?

I am 35 years old, TTC #1 and AF just arrived. This upcoming fertile cycle will be my 6th month trying. I have 28 day cycles and ovulation is typically on day 14. I am active, eat healthy and maybe 15 lbs overweight. We BD the 3 days around a positive OKP and every other day during fertile week. Here is all I have tried/used so far 1) OKPs each month 2) Prenatals the whole time 3) Pregprep/Fertilprep - 1 month 4) Preseed - 2 months 5) Mucinex - 1 month 6) Pineapple core each month. Any other suggestions before we go to the Doctor?