Find when is the safe or infertile period in your menstrual cycle, when chances of conception (getting pregnant) is 0% to 5%. First day of your Last Menstrual Period12345678910111213141516171819202122232425262728293031 - JanuaryFebruaryMarchAprilMayJuneJulyAugustSeptemberOctoberNovemberDecember - 2023202420252026 Average Gap: 26 days27 days28 days29 days30 days31 days32 days33 days34 days35 days Please enter First date of your Last Menstrual Period (LMP) and click 'Calculate' Or Select date in Calendar?Apr - 2025SuMoTuWeThFrSa 123456789101112131415161718192021222324252627282930 May - 2025SuMoTuWeThFrSa 12345678910111213141516171819202122232425262728293031Jun - 2025SuMoTuWeThFrSa123456789101112131415161718192021222324252627282930 Jul - 2025SuMoTuWeThFrSa 12345678910111213141516171819202122232425262728293031 Related ... » When is Ovulation (Ovulation Calculator) » Fertility Calculator » Birth Control » Birth Control MethodsAbstinence, Barrier, Behavioral, Emergency Contraceptives, Fertility awareness, Hormonal, Intrauterine devices, Lactational amenorrhea, Sterilization, Withdrawal » ContraceptivesAbortion, Cervical Caps, Condoms, Contraceptive Sponges, Diaphragms, Emergency Pills, Under Skin Implants, Injections, Intrauterine (IUDs), Oral pills, Patches, Vaginal ring » Birth Control FAQsOn Menstrual Cycle, On Health, On Contraceptive Pills, On Depo Provera (Shot), On NuvaRing (Ring), On Ortho Evra (Patch), Other FAQS » BMI Calculator (Body Mass Index) » Calories Calculator » Calories in Food » Zodiac Astrology (Signs of Zodiac) » Chinese Astrology » Find your Zodiac & Chinese star signs » Find Compatibility by Zodiac (Rashi) » Birthday Compatibility Calculator » Find Astrological Compatibility of Name » Find Chinese Star sign Compatibility » Find Chinese Birth-date Compatibility » Find your Birthstone » Find Numerology of name » Find Lucky number, color, day, metal, hours ... » Find Auspicious stones for your name » Your weight on different planets