Dog heat cycle calculator
Not sure? Leave 7 months, the average.
Most likely fertile days
Nov 2, 2026 – Nov 11, 2026
Treat her as able to get pregnant from Oct 29, 2026 until every sign of heat is gone (usually by Nov 14, 2026, sometimes Nov 21, 2026).
- Next heat 1, around
- May 24, 2027 (± about a month)
- Next heat 2, around
- Dec 24, 2027 (± about a month)
- Next heat 3, around
- Jul 24, 2028 (± about a month)
Fertile days vary a lot between dogs. Only progesterone tests at your vet pin down ovulation.