Most people with uncomplicated pregnancies can begin maternity leave at 36 weeks, though the exact timing depends on your health, your employer’s policies, and the leave laws in your state. There’s no single federal rule dictating when you must stop working. Instead, a patchwork of protections, benefits, and personal circumstances shapes when your leave can realistically begin.
The Typical Starting Point: 36 Weeks
For a straightforward pregnancy, 36 weeks of gestation is the standard point when disability-based maternity leave kicks in. This gives you about four weeks before your due date. If you feel well and want to keep working past 36 weeks, you generally can, but those extra days at work won’t extend your postpartum leave. In other words, you can’t “bank” unused prenatal leave weeks and tack them on after the baby arrives.
Some people choose to work right up until labor begins, either by preference or financial necessity. Others find that fatigue, swelling, or discomfort makes the last few weeks of pregnancy difficult to power through at a job. There’s no medical rule forcing you to stop at any particular week unless a complication arises.
Starting Leave Earlier for Medical Reasons
If your pregnancy develops complications, your doctor can certify that you need to stop working before 36 weeks. Federal leave protections don’t typically cover pre-delivery time off unless there’s a documented medical reason. Common conditions that qualify include threatened premature labor and high blood pressure (preeclampsia). Placenta problems, severe nausea requiring hospitalization, and cervical insufficiency are other reasons your provider might pull you from work early.
In these cases, your leave start date is determined by your medical team, not a calendar. Your doctor will provide certification to your employer explaining why you need to begin leave sooner.
Who Qualifies for Federal FMLA Leave
The Family and Medical Leave Act provides up to 12 weeks of unpaid, job-protected leave, but not everyone qualifies. You’re eligible if you meet all three of these criteria:
- Tenure: You’ve worked for your employer for at least 12 months.
- Hours: You’ve logged at least 1,250 hours in the 12 months before your leave starts (roughly 24 hours per week).
- Employer size: Your employer has at least 50 employees within a 75-mile radius of your work location.
Public agencies and public or private schools are covered regardless of size. But if you work for a small private company with fewer than 50 employees, FMLA doesn’t apply to you at all. That doesn’t mean you have no options, but it does mean your leave depends entirely on your employer’s policies and your state’s laws.
How Far in Advance to Notify Your Employer
Federal law requires at least 30 days’ notice before taking FMLA leave when the need is foreseeable, and a planned birth is about as foreseeable as it gets. Most people tell their employer well before that 30-day window, but legally, a month is the minimum. If something unexpected happens, like an emergency delivery or sudden complications, you’re required to notify your employer as soon as practicable. If you provide less than 30 days’ notice for a planned leave, your employer can ask you to explain why more notice wasn’t possible.
Postpartum Leave Duration
How long your leave lasts after delivery depends on the type of birth. Short-term disability policies, which many employers offer, typically cover six weeks for a vaginal delivery and eight weeks for a cesarean delivery. These timelines reflect standard medical recovery, not a legal mandate, so your actual coverage may differ based on your specific plan.
Most short-term disability plans also include a waiting period (called an elimination period) of 14 or 30 calendar days before benefits begin. During that gap, you won’t receive disability payments, which is why many people use accrued vacation or sick time to cover those first couple of weeks. Your total time away from work might be longer than what disability covers if you layer FMLA leave on top, but the unpaid portion is just that: unpaid.
State Paid Leave Programs
FMLA leave is unpaid, which is the biggest gap in the federal safety net. Thirteen states plus the District of Columbia now have mandatory paid family leave programs that can partially replace your income while you’re out. Hawaii offers paid temporary disability, and Puerto Rico provides both temporary disability and maternity leave benefits.
California offers one of the more generous examples. As of January 2025, workers earning under about $63,000 per year receive 90% of their weekly wages through the state’s Paid Family Leave program. Higher earners receive 70% of weekly wages, up to a maximum of $1,681 per week. These rates jumped significantly from the previous 60-70% range, making it considerably easier for lower-income workers to afford time off. Each state program has its own eligibility rules, benefit levels, and duration limits, so checking your specific state’s program is essential.
If you don’t live in a state with paid leave and your employer doesn’t offer it, your options are FMLA (unpaid), short-term disability if you have it, and whatever paid time off you’ve accumulated.
Protections Before You Go on Leave
The Pregnant Workers Fairness Act, a federal law, requires employers to provide reasonable accommodations during pregnancy. This includes time off for prenatal appointments, temporary changes to your job duties, and modifications like avoiding certain chemicals, heat exposure, or heavy lifting. You don’t need to go on full leave just because pregnancy is affecting your ability to do parts of your job.
Even minor or episodic conditions like morning sickness or pregnancy-related migraines qualify for accommodations. You can request a later start time, a temporary suspension of physically demanding tasks, or schedule flexibility for medical visits. If your employer asks for documentation from your healthcare provider, they’re limited to requesting only what’s directly relevant: a description of the needed change, the approximate number of appointments, or the estimated recovery time.
These accommodations can make it easier to keep working comfortably until your planned leave date rather than being forced out early because your job can’t flex around your pregnancy needs.
Putting Together Your Leave Plan
In practice, most people piece together leave from multiple sources. A common approach is to start short-term disability benefits around 36 weeks (or at delivery if you work until then), use FMLA to protect your job for the full 12 weeks, and layer state paid leave on top if it’s available. Some employers also offer supplemental maternity benefits that fill gaps between disability payments and your full salary.
The timing of your leave is ultimately a decision shaped by your health, your finances, and your coverage. Start by checking three things: whether you qualify for FMLA, whether your state has a paid leave program, and what your employer’s short-term disability and parental leave policies look like. Those three pieces together will tell you when you can realistically start leave and how long you can stay out.