When is my fertile window this month?
Ovulation and fertile window calculator
Enter the first day of your last period and your usual cycle length. See your next fertile window, when SGH says to see a doctor, and MOH co-funding for IVF and IUI.
New to this? Read the short guide first →
Step 2 Your result
Your next fertile window
Your next three windows
KKH: it is advised “to have regular unprotected sexual intercourse every 2-3 days throughout the month as it might be difficult to predict ovulation accurately.”
Periods that vary a lot make a calendar estimate less useful. SGH: “If you have irregular infrequent periods, see your doctor to see if these hormonal imbalances, for example thyroid dysfunction, can be corrected.”
When to see a doctor
SGH: see a doctor after trying “for a year without success if you are under 35, or after six months if you are over 35.”
KKH’s reasons to seek help early
“Seeking help early is important. You should see a doctor if you are”
- “Not pregnant after 1 year of regular unprotected sexual intercourse”
- “If you have a medical condition that might affect your fertility potential”
- “Women aged 35 years and above”
KKH: “Call KKH Central Appointments (+65 6294 4050) for fertility specialist consult or approach polyclinic for a referral if keen for team care”
IVF and IUI co-funding at public hospitals
| Treatment | Co-funding |
|---|
Up to 3 fresh and 3 frozen IVF cycles and 3 IUI cycles, for women below 40 at the start of the cycle, with exceptions.
You can use your own or your spouse’s MediSave. Made For Families’ limits: S$6,000 for the first cycle, S$5,000 for the second and S$4,000 for each later one. The lifetime limit is S$15,000. Made For Families: “You do not need to apply for the co-funding scheme. Simply fill up a declaration form provided by the hospital, which will be used to check your eligibility for the scheme.”
MOH’s estimate for 2024 at public centres: S$13,000 for a fresh IVF cycle and S$3,400 for a frozen one, before co-funding.
The three public assisted reproduction centres
Listed alphabetically, not ranked. Phone numbers from MOH’s HealthHub article.
- KKH Specialist Outpatient Clinic (Fertility Specialist): 6294 4050
- NUH Clinic for Human Reproduction: 6774 5336
- SGH Centre for Assisted Reproduction: 6321 4377
Made For Families: “No. Similar to general healthcare subsidies, the co-funding scheme only applies to treatment done at public hospitals.”
Before you start trying: KKH’s advice
- “Optimise your health and wellbeing before pregnancy to improve pregnancy outcomes and give your child the best start in life.”
- “Keep weight within the ideal body mass index (BMI) range and maintain a healthy diet.”
- “Start folic acid”
- “Smoking and recreational drugs are discouraged in men & women attempting pregnancy.”
- “Alcohol and caffeine should be limited to minimal to moderate use while trying to conceive.”
Next: read the short guide, print the checklist or work out a due date.
What this result assumes
A calendar estimate, not a test. Ovulation is taken as 14 days before your next period, as the NHS says, and could fall 10 to 16 days before it. The fertile window is the five days before ovulation and ovulation day itself (BMJ, 2000). The same study found the window often falls earlier or later, even in regular cycles. KKH advises sex every 2 to 3 days through the month, because ovulation is hard to predict. “When to see a doctor” quotes SGH and KKH. Co-funding and MediSave limits are Made For Families’ figures, and the hospital checks eligibility. Your dates, cycle and age stay on this device.
Step 3 What next
When is my child's next jab due?When is my baby due, and what comes next?Read the guideTrying for a baby in Singapore →Common questions
How is the fertile window worked out?
Ovulation is taken as 14 days before your next period, as the NHS says. The window is the five days before it plus ovulation day, from a BMJ study.
How accurate is a calendar estimate?
Not very. The same BMJ study found the fertile window often falls earlier or later, even in regular cycles. KKH advises sex every 2 to 3 days through the month.
When should we see a doctor?
SGH says after a year of trying if you are under 35, or after six months if you are over 35. KKH also lists women aged 35 and above, and anyone with a medical condition that may affect fertility.
How much does the government co-fund IVF?
Made For Families lists up to 75% of a fresh IVF cycle, up to S$7,700, for a Singapore Citizen couple at a public hospital. Couples with a PR or foreign spouse get less.