Best pregnancy-safe constipation relief

How do the options compare?

The groups are stacked by how much of each one crosses into your bloodstream and how much cramping it brings, starting with the group that does neither.

• Dietary fiber is the first choice for pregnancy-related constipation, with osmotic and stimulant laxatives generally reserved for people who don't get enough relief from diet changes alone. 1
• A 2024 gastroenterology practice update lists dietary fiber, lactulose, and polyethylene glycol as its core recommended options for constipation during pregnancy. 2
• Docusate sodium, a common stool softener, is unlikely to raise the chance of birth defects or complications like preterm delivery above the usual background rate when used as directed. 3
• Laxatives fall into three groups: bulk-forming, osmotic options like polyethylene glycol, and stimulant options like senna or bisacodyl. The bulk-forming and osmotic groups largely stay out of your bloodstream, while the stimulant group can bring on stronger cramping. 4
• Magnesium has a natural laxative effect at higher doses, and the pregnancy upper limit for supplemental magnesium is 350 mg a day, a number worth tracking if you're using a magnesium product for stool support alongside your prenatal vitamin. 5

Which option makes sense?

Bulk-forming fiber and a stool softener sit at the gentle end, an osmotic option is the common next step, and magnesium products and stimulants each carry a ceiling worth respecting.

Disclosure: Pregnancy Smart makes supplements in this category. The comparison above is written to inform, not to steer readers toward or away from our brand.