Please help🙏

I just ordered Preseed, we've been TTC for almost 5yrs & I know Nothing BUT BD. ANY ADVICE AT ALL... Or, products, vitamins, foods etc.?? Begging for help, I feel broken💔 in more ways than 1. What's the best way to know when I'm ovulating, for sure? Preseed arrives Weds. & I'll be 36 on September 27th. My friend said afew years ago, "I just don't ever see you being a Mom," & that just runs through my head over & over since... Why? Everyone else I know can't believe I'm Not 1 already 💔💔