Secondary infertility: why a second baby can be harder, when to get help and where to go in Singapore

Secondary infertility is when a couple who have conceived before can't conceive again after a year of regular sex without contraception. SGH's definition, published by SingHealth, includes couples whose earlier pregnancy ended in a live birth, a stillbirth, a miscarriage or an ectopic pregnancy, and says it often comes from health changes since that pregnancy: age, weight, a condition such as polycystic ovary syndrome, scarring after an infection or surgery, or a change in sperm. See a doctor after 12 months of trying if you're under 35, after six months if you're 35 or older, and sooner if you've had surgery on your womb, tubes or ovaries. Government co-funding for fertility treatment doesn't depend on how many children you have, though cycles used for your first baby count towards the limit. If you're still deciding whether to try for another, our guide to family planning in Singapore covers spacing, costs and leave.

Why conceiving again can be harder

Having one baby proves a lot of things worked once. It doesn't mean they still work the same way. These are the causes Singapore's hospitals list:

Lifestyle counts for both partners. SGH lists smoking, heavy drinking and being under or overweight as things that harm fertility, and says sperm can take about three months to improve after a change, so don't expect results straight away. NUH also counts chronic stress among the lifestyle factors.

When to see a doctor

SGH's rule is to see a doctor after a year of trying if you're under 35, or after six months if you're 35 or older. NUH adds that early assessment after 35 improves treatment options. Go sooner if:

• You've had an operation on your womb, fallopian tubes or ovaries
• You've had miscarriages and want to try again
• Your periods have become irregular or stopped
• You have period pain or pain during sex
• Either of you has a known medical or reproductive problem
• Your partner has problems with erections or ejaculation, low sex drive, or pain or swelling in the testicles

Not conceiving for a few months is still normal. KKH says a healthy couple under 40 has about an 80% chance of pregnancy within a year, and half of the rest conceive in the following year. Our guide to the fertile window helps you time sex, and trying to conceive in Singapore covers the basics, from folic acid to a preconception check.

What the doctor will check

NUH says you can start with an obstetrician-gynaecologist or go straight to a reproductive specialist. Both partners are tested, because the cause can sit with either or both. Expect questions about your last pregnancy and birth, periods and any surgery since, blood tests for hormones and egg reserve, a pelvic ultrasound, sometimes a test that the tubes are open, and a semen analysis. NUH puts difficulty conceiving at about 1 in 6 couples, and KKH at least 1 in 8 at some point, so you're far from alone.

What comes next depends on the cause: it may be weight loss to restart ovulation, medicine to help you ovulate, treating an infection, surgery, intrauterine insemination (IUI), or IVF. Our guide to IVF in Singapore explains success rates by age and what each cycle involves.

Fertility treatment costs for a second child

MOH's co-funding at public Assisted Reproduction centres doesn't depend on how many children you already have. The rules, from MOH's page last updated in March 2026:

• Up to 75% co-funding for a Singaporean couple, for up to 3 fresh and 3 frozen IVF cycles, plus up to $1,000 a cycle for 3 cycles of IUI.
• The limits are for your lifetime as a couple. If you had co-funded cycles for your first baby, those count, and you qualify only if you haven't already used 3 fresh and 3 frozen co-funded cycles.
• The woman must be under 40 when a cycle starts, except for the last two of the six cycles, and at least one spouse must be a citizen.
• Co-funding is automatic; there's nothing to apply for.

MediSave can pay up to $6,000 for a first assisted conception cycle, less for later ones, with a lifetime limit of $15,000 per patient, so check what you used last time. The public centres are at KKH, NUH and SGH.

The emotional side

Secondary infertility can feel lonely in a particular way. Friends may assume that because you have one child, the next will be easy, and some people say "at least you have one", which doesn't help. You may feel guilty for wanting more when you already have a child, or find it hard to be around pregnant friends and baby showers. Those feelings are common, and they deserve support.

• NUH offers counselling services, fertility support groups and referral to mental health professionals for couples going through fertility problems.
• KKH's IVF programme includes a session with an IVF counsellor on the emotional demands of treatment and on coping with failed attempts, and psychological counselling after a failed cycle. Counselling before IVF is required under MOH guidelines.
• Agree as a couple how far you want to go, how much to spend and who to tell, and revisit it between steps rather than in the middle of one.
• Keep your first child's routines steady through the appointments; it helps the whole family.

If low mood or anxiety lasts, tell your doctor; it's treatable, and it's a normal response to a hard situation.

Frequently asked questions

What is secondary infertility?

Being unable to conceive after a year of trying when you've been pregnant before. SGH's definition covers couples whose earlier pregnancy ended in a birth, a stillbirth, a miscarriage or an ectopic pregnancy.

What causes secondary infertility?

Usually something that has changed since the last pregnancy: age, weight, polycystic ovary syndrome, scarring of the tubes after infection or surgery, endometriosis, or changes in sperm. SGH says up to 25% of couples have no clear cause.

When should we see a doctor about a second baby?

SGH says after 12 months of trying if the woman is under 35, after 6 months if she's 35 or older, and sooner after surgery on the womb, tubes or ovaries, or after miscarriages.

Can we get government co-funding for IVF for a second child?

Yes. MOH's co-funding doesn't depend on how many children you have, but the limit of 3 fresh and 3 frozen co-funded cycles is for life, so cycles used for your first child count.

Is secondary infertility common?

Difficulty conceiving affects about 1 in 6 couples, NUH says, and KKH says at least 1 in 8 at some point in their lives. It can happen after an easy first pregnancy.