Question

conception and sign of pregnancy

Answer 1

See it on google. U will find it better there.

Answer 2

After conception, the fertilized egg attaches itself to wall of the uterus. This can cause one of the earliestsigns of pregnancy -- spotting and, sometimes, cramping. That's called implantation bleeding. ... The cramps resemble menstrual cramps, so some women mistake them and the bleeding for the start of their period