Sex after ovulation

Triya

Hi all, i read just then of a research about intercourse during implantation could lower the chance of succesfully falling pregnant. Anyone has any thoughts?

I mean, let's say we don't know for sure if we ovulated, or if the egg is fertilised, which day and all that 🤔

Thought of keep having sex even after the fertile period to max the chance, but this article kinda doubt me.