I get my period every month.it comes the first two days very slow then it stops for almost a week then it comes again regular. i enter birth control

Normal but annoying: Regular periods are reassuring, even when the bleeding pattern is not quite typical. If you were on the birth control pill this might improve with a slightly different pill. Otherwise this probably reflects a little bleeding associated with ovulation and simply is a reflection of the hormone fluctuations that occur at that time.