How Many Days Post Ovulation Pregnancy Test *In order to know how many days post your ovulation, you should be taking a pregnancy test. It is important to understand the process of ovulation, conception, and implantation. It is also important that you understand about the formation of the hCG hormone. And how does the homepregnancy test detect pregnancy? *When the dominant follicle ruptures. The egg released from the ovary and into the close fallopian tube. It takes up to a maximum of 24 hours for the egg to fertilize. In case there are sperms in the fallopian tube and penetrates with fresh egg then this leads to conception.