How many days did you know you were pregnant after conception??

Chelsey • Trying to conceive our 1st baby since 05/01/16 👼🏼
Confirmed ovulation on May 23rd (CD 29) BD on CD 29 and CD 30 using preseed both days. Starting to have a crampy feeling almost like my period is going to come? Has anyone ever had this early pregnancy symptom? Is it implantation cramping? I was reading that you can feel the egg implanting itself a couple days after.  Someone ever have this and find out their pregnant two weeks later?