Can pregnancy occur when a cat is in heat but unwilling?

Yes, pregnancy can occur even if a cat is not displaying signs of being in heat or is unwilling to mate. Cats are induced ovulators, which means that ovulation is triggered by the act of mating.

When a male cat mates with a female cat, the physical stimulation of the penis in the vagina causes the female to ovulate. This means that even if a female cat is not showing any signs of being in heat, she can still get pregnant if she mates with a male cat. To prevent unwanted pregnancy, it is important to keep female cats indoors and away from male cats during their heat cycles.