Period Calculator

Always be prepared for your upcoming periods and know in advance when you’ll be ovulating thanks to the effortless Whisper period calculator.

Never be surprised when it’s that time of the month as the period calculator ensures you know exactly when to expect your next period.

Keeping monthly calculations of your period and other symptoms helps you recognize when you’re ovulating and anticipate your period so you can feel fresh and prepared every day of your menstrual cycle.

Simply answer the following 3 questions to get started:

1. 1 When did your last period start?
2. 2 How long did your period last?
3. 3 How long is your menstrual cycle?

Now, click on the "Track" button and you are all set!

Whisper Period calculator will inform you when is your next period due and also provide info regarding useful information about products that you might like.

The period calculator predicts the time to expect your next period by analyzing your period history data. Every body and every cycle is unique so it's important to remember that this the best estimate of your menstrual cycle. Better to feel prepared than surprised, no?

The average period lasts up to 28 days, but it’s completely normal to have a slightly longer or shorter cycle. No need to worry as it’s all very natural. Considering that, the period calculator is not 100% accurate for girls who have irregular periods, as its extremely complicated to predict the date of the next period in those cases. However, it can help give you an overview of just how irregular your period is and therefore have more of an idea of what to expect in future.

Knowing when to expect your next period gives you freedom in making plans!

We all want to enjoy our vacations as much as possible and deserve the carefree feeling and not worry about having your period.

The period calculator gives you the knowledge of when your next period is coming, so that you are not caught unawares!

All menstrual cycles are unique, but they do have some things in common:

Pre-Period
When you period is about to come, you start experiencing Premenstrual Syndrome, or 'PMS', symptoms, such as headaches, bloating, irritability and generally feeling more emotional than normal. We all know how it feels!

Period
Day 1 is the start of your cycle and when the bleeding begins. Periods generally last between 4 and 7 days, with the heaviest days being the first and the second. An average cycle lasts 28 days but can range from as few as 21 days to as many as 35 days. Keep in mind that you need to consult with your doctor if your period lasts longer than 7 consecutive days.

Peak Ovulation
This is the period when you will be ovulating and have the highest chances of getting pregnant. The fertile period length is about 6 days. In a 28-day cycle, ovulation typically occurs on day 14. The tracker will also help you to define these days!