Why is my sexual desire decreasing?

Frequency has little effect on your chance of conceiving, within a wide normal range, and the anxiety around this causes more harm than the timing itself. Sex every one to two days across the fertile window — the five days before ovulation plus the day itself — is sufficient. Daily intercourse does not meaningfully improve the odds, and abstaining to "save up" sperm is counterproductive: longer abstinence increases volume but reduces motility and increases DNA damage. For men with normal semen parameters, daily ejaculation does not deplete sperm to a degree that matters. Where counts are low, some specialists suggest every other day, though the evidence for this is not strong. The practical advice: regular sex through the month, without rigid scheduling, achieves as much as precise timing for most couples, and is considerably easier to sustain over months. If timed intercourse has become a source of pressure or has affected your relationship, that is worth raising with your specialist. It is a common problem and there are ways to reduce the burden, including moving to a less intensive approach.