Am married I have I week now but I need to get a bby so soon I sualy get my period at 28 and finish after 7 or 6 days so when are the right firtile days

Your married one week and want to get pregnant? Maybe you need to slow down and wait a few months before worrying about children so early in the marriage.
As for how to calculate your fertile time of the month? Ask your doctor. HE/she will have the best answer for you.