Pregnancy and Ovulation Cycle Calculator

It can be helpful for women to know when they are likely to ovulate. As a way of building body awareness or as a tool to help boost their chances of conceiving, becoming ovulation aware is a good skill. After all, over the course of a woman’s reproductive lifetime, ovulation can occur as many as 460 times, so there are plenty of opportunity to practice.

Our easy-to-use Ovulation Calculator below will help you predict your prime time for conceiving a baby. Learn about the different phases of your ovulation cycle, how your temperature can alert you to ovulation and many other interesting and useful facts and figures. The calculator is a great tool – especially when used while watching for your signs of ovulation.

Please enter the relevant dates below and click calculate.

Ovulation calculator

Ovulation calculator

Wondering when to conceive? Find out about the different phases of your ovulation cycle and predict your prime time with this easy tool.

Maio - 2016

Sun Mon Tue Wed Thu Fri Sat
First day of your period
Start date of fertility
Likely conception date
Likely conception date
The most fertile day
Days to conceive
Day of fertility decreases
Implant date
Pregnancy test
16 Maio
First day of your period This is the start of your period.
27 Maio
Start date of fertility This is the day you begin to conceive. 
28 Maio
Likely conception date Two days before ovulation, you have the ability to conceive on this day. 
29 Maio
Likely conception date Two days before ovulation, you have the ability to conceive on this day. 
30 Maio
The most fertile day According to the information you provide, this is the day of ovulation so the ability to conceive on this day is the highest. 
31 Maio
Days to conceive One day after ovulation, you have a great chance of conceiving on this day. 
1 Junho
Day of fertility decreases Two days after ovulation, the ability to conceive on this day decreases.
2 Junho
Implant date If your egg is successfully fertilized, this is an approximate date when the sperm is implanted into the uterus.
9 Junho
Pregnancy test One week after fertilization, you should use pregnancy test to check whether the fertilization results are successful or no
8 Agosto
The end of the first quarter (1)
21 Novembro
At the end of the second quarter (2)
20 Fevereiro
Approximate birthday

Note: The calculator provides an estimate based on the information you provide and may not be accurate. Please seek advice from a medical professional if you are trying to conceive.