Many pregnant women want labor to start as soon as possible, especially in the final weeks. At 37 weeks, a baby is considered early term, meaning labor is safe to begin. However, the honest answer is that no reliable method has been proven to start labor at home. The evidence behind most natural induction methods is thin, and some carry real risks. Here is what the science actually says about trying to speed up labor at 37 weeks.
What Does 37 Weeks Mean For Your Baby?
Pregnancy is considered full-term between 39 and 40 weeks. At 37 weeks, your baby is early term. Most babies born at 37 weeks are healthy, but they may have slightly higher risks of breathing problems or jaundice compared to babies born a few weeks later.
This matters because your body and your baby may simply not be ready for labor yet. The hormone shifts that trigger labor happen on their own timeline. Trying to force labor before your body is ready can lead to a longer, harder labor or medical interventions you wanted to avoid.
Your doctor or midwife will only recommend induction at 37 weeks if there is a medical reason, such as high blood pressure, preeclampsia, or concerns about the baby’s growth. Without a medical reason, waiting is the safer choice.
Can Walking Or Exercise Start Labor?
Walking is the most common advice for starting labor. The logic seems sound: gravity helps the baby press down on the cervix, and movement may encourage contractions. But research has not confirmed that walking actually starts labor.
Some studies suggest that women who stay active in late pregnancy may have slightly shorter labors. That is different from saying walking will start labor at 37 weeks. Being active is good for your overall health and comfort. It can help you sleep better, reduce swelling, and keep your energy up. Just do not expect it to trigger labor on its own.
If you do walk, listen to your body. Gentle walking is fine. Do not push yourself to exhaustion. If you feel unusual pain, dizziness, or heavy pressure, stop and rest.
Does Spicy Food Or Pineapple Help?
Spicy food is a popular folk remedy for starting labor. The idea is that the heat or the spice irritates the digestive system, which can stimulate the uterus. Some research suggests that certain compounds in spices might cause uterine contractions in a lab setting. But there is no clinical evidence that eating spicy food starts labor in pregnant women.
Pineapple contains an enzyme called bromelain. In theory, bromelain might soften the cervix. Again, no studies have shown that eating pineapple brings on labor. You would need to eat an enormous amount to get any meaningful dose, and that would likely just cause stomach upset.
These foods are not dangerous in normal amounts. If you enjoy them, eat them. But understand that they are not a reliable way to start labor. The evidence simply does not support the claim.
What About Nipple Stimulation Or Sexual Activity?
Nipple stimulation has more scientific support than most home methods. The reason is physiological. Stimulating the nipples releases oxytocin, the same hormone used in medical induction. Some small studies have found that nipple stimulation increases the likelihood of labor starting within a few days.
However, the evidence is not strong enough to recommend it as a reliable method. Nipple stimulation can cause strong, prolonged contractions. In rare cases, this can stress the baby. If you try this method, limit sessions to short periods and stop if contractions become too frequent or too strong.
Sexual activity is another common suggestion. Semen contains prostaglandins, which are the same compounds used to soften the cervix in medical induction. Nipple stimulation during sex also releases oxytocin. Some research suggests that women who have sex near their due date may go into labor slightly sooner. But other studies have found no effect.
Sex is generally safe in a normal pregnancy at 37 weeks, as long as your water has not broken and you have no bleeding or other complications. Talk to your provider if you have any concerns about whether it is safe for you.
Are Castor Oil Or Herbal Remedies Safe?
Castor oil is one of the oldest natural induction methods. It works by stimulating the bowels, which can trigger uterine contractions. The problem is that the evidence for effectiveness is weak, and the side effects are unpleasant and potentially dangerous.
Castor oil commonly causes severe cramping, nausea, and diarrhea. Dehydration from diarrhea can be dangerous for both you and your baby. Some case reports have linked castor oil use to fetal distress, meconium aspiration, and other complications. No clinical guidelines recommend castor oil for induction. Avoid it.
Herbal remedies like red raspberry leaf tea, evening primrose oil, and blue cohosh are often promoted online. None of these have been proven to start labor in clinical trials. Some may have real risks. Blue cohosh, for example, has been associated with heart problems in newborns. The safety of these herbs during pregnancy is not well studied. Do not take them without discussing with your doctor or midwife first.
When Is Medical Induction Considered At 37 Weeks?
Medical induction is a procedure where a doctor uses medications or other methods to start labor. At 37 weeks, induction is only offered when the benefits outweigh the risks. Common reasons include preeclampsia, gestational diabetes with poor control, fetal growth restriction, or a decrease in amniotic fluid.
If your provider recommends induction, they will explain the specific reason and the process. Induction methods include membrane sweeping, where a clinician separates the amniotic sac from the cervix, and medications like prostaglandins or Pitocin. These are done in a hospital setting where you and your baby can be monitored.
Membrane sweeping is one of the few interventions that has decent evidence for starting labor naturally. It is done in a clinic or hospital, not at home. Some research suggests that membrane sweeping increases the chance of labor starting within 48 hours and reduces the need for formal induction. It can be uncomfortable and may cause light spotting or cramping.
How To Speed Up Labor At 37 Weeks What The Evidence Says
If you are asking how to speed up labor at 37 weeks, the evidence says this: no home method is proven to work reliably. Walking, spicy food, pineapple, and herbal teas are not supported by clinical research. Nipple stimulation has the most physiological support but is not a guaranteed method. Castor oil is potentially dangerous and should be avoided.
The safest approach is to let labor begin on its own. Your body releases hormones when your baby’s lungs are mature and your cervix is ready. This process takes time. For most women, labor begins between 39 and 41 weeks. Being at 37 weeks means you are close, but your baby may still need more time to fully develop.
If you are uncomfortable or anxious, talk to your provider. They can assess whether your cervix is changing and discuss options like membrane sweeping. They can also reassure you about what is normal. Trust your care team and your body. Labor will start when both are ready.
Frequently Asked Questions
Is it safe to try to induce labor at 37 weeks?
Most home induction methods are not proven safe or effective, and some like castor oil carry real risks. The safest choice is to wait for labor to start naturally unless your doctor recommends medical induction for a specific reason.
Does walking really help start labor?
Walking is healthy and may help you feel better, but no research confirms it starts labor. Some studies suggest active women may have shorter labors, but that is not the same as triggering labor.
Can nipple stimulation bring on labor?
Nipple stimulation releases oxytocin and has some research support, but the evidence is not strong enough to call it reliable. If you try it, keep sessions short and stop if contractions become too strong or too frequent.
What is the difference between 37 weeks and 39 weeks?
At 37 weeks your baby is early term, while 39 weeks is full term. Babies born at 37 weeks are usually healthy but may have slightly higher risks of breathing issues or jaundice compared to babies born later.

