 [ Symptoms ] what is dopamine [ Disease ] hi just wait it could be a hic cup with your period it is possible to miss one here and there just missing one does not mean your pregnant it could also be from having anal sex it just upset your system if it was you first time but next time use some ky jelly your find the slip a lot better go to www dodsonandross com on the if you look down the left hand side you will see anal sex give this a good read you may find some help do hope this helps you good luck