Some 'safer' types of forever chemicals, like PFHpA, might make it harder for women to get pregnant each month — every higher level of these chemicals in the body is linked to an 8% lower chance of conceiving.

What we've found so far suggests that higher levels of certain short-chain PFAS chemicals, like PFHpA, may be linked to a lower chance of conceiving each month in women trying to get pregnant [1]. Our analysis of the available research shows this association is based on observational data, with 52.0 supporting assertions and no studies refuting it in the evidence we’ve reviewed [1]. We looked at the data and found that each increase in the amount of PFHpA in the body is tied to an 8% reduction in the likelihood of conception per cycle [1]. PFHpA is one of the shorter-chain PFAS chemicals sometimes marketed as a safer alternative to older, longer-chain types. But what we’re seeing in the evidence raises concerns about its impact on reproductive health, at least in terms of monthly fertility [1]. It’s important to note that all the current evidence we’ve analyzed comes from studies that observe patterns in human populations. These studies can show links, but they cannot tell us that PFHpA directly causes changes in fertility. Many factors—like age, lifestyle, overall health, and exposure to other chemicals—can also affect conception chances. Still, the consistent direction of the evidence we’ve reviewed leans toward a negative association between PFHpA levels and fertility [1]. We don’t yet know enough to say how much exposure is too much, or whether reducing PFHpA levels would improve fertility outcomes. There are no studies in our current dataset that contradict this pattern, but the evidence base is still limited to observational findings. Our current analysis shows a link worth paying attention to, especially for women actively trying to conceive. While we can’t draw firm conclusions, the pattern suggests it may be wise to minimize exposure to PFAS chemicals, including shorter-chain types like PFHpA, when possible. Practical takeaway: If you're trying to get pregnant, reducing your contact with nonstick cookware, stain-resistant fabrics, and contaminated water might help lower your exposure to PFAS, including types like PFHpA that our analysis links to lower monthly conception chances.