I had my normal period and every thing and I'm also having 11 week pregnancy symptoms, having the dizziness, constipating, peeing a lot, farting, craving, sleeping and etc and yesterday I realized that the line nigra was appearing under my belly bottom to my private part which that they said you can have in the 11th week of pregnancy ? What dose that mean. Could I be pregnant?

Having a normal period makes it unlikely, but, if you have had intercourse its possible.

Take another test or see your physician.