Community post

Bump

Implantation is impossible before 6dpo, and unlikely before 9dpo. Are you sure of your dates ?

Yes and I'm not so sure about that considering all three of my babies I got bfp on 7-9dpo. And I was tracking temp, lh strips and blood tested progesterone with all of them.

Its not medically impossible. This basic biology is based on the assumption that the exact same thing happens in every woman's body the exact same way. They came up with this number based on the idea that each cell replication takes approximately 12 hours. After each cell division necessary for the egg to become a blastocyst, and after the travel to the uterus, which takes at least 3 days, the blastocyst hatches from the zona pellucida and implants in the uterine wall. There is no such thing as a 100% hardfast rule in medicine or science, and the truth is that these cell replications can take more or less time. The egg can also travel faster in some women than others. But with faster cell replication and a travel of 3 days a woman could implant by 4dpo. The 6-12 rule is based on the "average" process that occurs, because thats what they do in science and medicine. It IS NOT medically impossible to implant before 6dpo, it is just "rare".