Reviewed by Rachel Gurevich, RN When you're trying to conceive, there is often a lot of focus placed on ovulation ... implantation, your body starts producing the pregnancy hormone human chorionic ...

Your body undergoes a dramatic process from the time of conception to the first positive pregnancy test. One of the most significant steps is implantation ... produce the human chorionic ...

Implantation cramps occur 5 to 6 days after conception and can last one to three days. To tell if it's implantation cramps versus menstrual cramps, wait to see if you start menstruating.