I usually have a 26-27 day cycle but it was 25 days this time. (ttc) do i have more or less fertile days in this cycle?

Cycle length: Usually the variable portion of your cycle is related to that after ovulation. Most women will ovulate on day 14 of her cycle making the first half of the cycle consistent.

Same: Sperm live for 2-3 days and the egg is available for 1-3 days per month once you ovulate. This gives a 3-6 day window each month regardless of what day you ovulate.