What do I do?

Cierra
Ok so I don't know weather to go to my doctor or not but my period is just about to be two weeks long and I'm thinking it's because I didn't take my birth control pill at the same time I usually take it at 8:30 every morning but the other week I didn't take it until around 12 in the afternoon. But the period had been very light and not heavy what's so ever. So I don't know if it's that or if I should call my doctor. Any help would be great!