Spotting on the pill

Hannah

I have always been off and on with birth control and I stopped about a year and a half ago then I went to my gyno about a month ago and asked to be put back on birth control. She prescribed me birth control pills and I’ve always taken the pills never anything else so I know breakthrough bleeding can be expected in the first 3 months it happened to me the first time I ever took them, but this time I have been spotting for 2 weeks and am now on the 4th week of the pack which is when I should get my period so I am still bleeding. I am not sure if I should be concerned cause I’m going on 3 weeks now of bleeding or if this is normal? If anyone could provide any input that would be helpful thank you!