I think I may just stop trying

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After 18 months of ttc at 22 and husband is 25 I think the only thing I'm going to do is use preseed and get my husband on something to help sperm count and such. No more tracking, checking and may even stop using log on Glow to get my mind off of it. Does anyone have any suggestions for what he should take and success stories? I'm looking into fertilsan m.