When to Stop Working With Twins

The rules do not change. The pregnancy does.

Twins Trust states the position plainly: maternity leave and pay are based on the pregnancy, not the number of babies, so parents of twins, triplets or more are not automatically entitled to extra leave or pay. GOV.UK confirms the underlying entitlement is 52 weeks of Statutory Maternity Leave made up of 26 weeks ordinary and 26 weeks additional leave.

So the question is not how much leave you get. It is when to start it, and that calculation is genuinely different with twins.

The earliest you can start

GOV.UK says that usually the earliest you can start your leave is 11 weeks before the expected week of childbirth. Twins Trust says the same and adds the workaround many people use: taking annual leave first so you can finish work earlier than that, or using sickness leave if you are struggling with pregnancy-related illness before your maternity leave starts.

Twins Trust also says many doctors suggest planning to stop work earlier than with one baby, so you have time to rest and prepare. That is advice rather than entitlement, but it reflects what a twin pregnancy asks of you physically.

The trap: your babies may arrive before your leave does

Here is the calculation nobody does. NICE NG137 offers planned birth at 37 weeks for uncomplicated dichorionic diamniotic twins, at 36 weeks for uncomplicated monochorionic diamniotic twins, between 32+0 and 33+6 weeks for uncomplicated monochorionic monoamniotic twins, and at 35 weeks for uncomplicated trichorionic or dichorionic triamniotic triplets. On top of that, NG137 says about 60 in 100 twin pregnancies result in spontaneous birth before 37 weeks.

GOV.UK says leave will also start automatically the day after the birth if the baby is born early. Twins Trust puts it in twin terms: if your babies arrive earlier than expected while you are still working or using annual or sick leave, your maternity leave begins on the day they are born.

The practical consequence is that picking a leave date close to your due date can mean the handover you planned never happens, and the rest you planned never happens either.

The four-week rule

GOV.UK says maternity leave starts automatically if you are off work for a pregnancy-related illness in the four weeks before the week your baby is due. Twins Trust repeats this. With twins, the four weeks before the expected week of childbirth may fall after the gestation at which your babies are actually likely to be born, which is another reason the standard timetable fits twin pregnancies badly.

GOV.UK also notes you must take at least two weeks off after the birth, or four weeks if you work in a factory.

Appointments are paid time off, and there are more of them

GOV.UK says employers must give pregnant employees time off for antenatal care and pay their normal rate for that time, and that antenatal care is not just medical appointments but can include antenatal or parenting classes recommended by a doctor or midwife. It also says employees cannot take that time off until they have told their employer about the pregnancy.

The volume is the twin-specific part. NG137 says an uncomplicated dichorionic diamniotic twin pregnancy should be offered at least eight antenatal appointments with the core team, and an uncomplicated monochorionic diamniotic twin pregnancy at least eleven. Triamniotic triplet pregnancies are offered at least nine or at least eleven depending on chorionicity. NG137 also asks for 45 minutes for the anomaly scan and 30 minutes for growth scans, so the appointments are longer as well as more frequent.

Twins Trust points out that a twin-specific antenatal course counts as antenatal care when a midwife or doctor recommends it.

Health and safety at work

GOV.UK says employers must assess risks to pregnant employees and, where risks cannot be removed, should suspend the employee on full pay, for example by offering suitable alternative work. It says employees who believe they are at risk but whose employer disagrees should talk to their health and safety or trade union representative, and can contact the Health and Safety Executive.

Standing for long periods, heavy lifting and long commutes are all worth raising in that assessment. RCOG notes that backache, swollen ankles and varicose veins are all more common in multiple pregnancy.

If your babies need neonatal care

Twins Trust says you may be entitled to Neonatal Care Leave and Pay, describing it as one week of leave and pay for every seven consecutive days your babies are in hospital, up to a maximum of 12 weeks, and says it can be taken in addition to maternity leave. It adds that if your babies are admitted at different times you may be able to claim for each baby separately, and that if your maternity leave has already started you can take neonatal leave afterwards.

Given that Twins Trust also says around 40% of twins and triplets need extra support in hospital after birth, this is worth reading before you need it rather than after.

Working out your date

Start from the planned birth gestation for your type of twin pregnancy rather than from your due date. Decide how many weeks before that you want to be off work. Check whether that lands inside the 11-week window, and if not, plan annual leave to bridge the gap. Tell your employer your SMP start date by the fifteenth week before the babies are due, which is what Twins Trust says is required, and remember you can change your dates later with 28 days' notice.

Then accept that the date may move. With twins, that is not a failure of planning; it is the normal course of events.