1 week late on my period but negative tests last month I was 1 week early.. this month 1 week late cpuld I be pregnant same thing happened when I was pregnant w my first bby to find outI was 2 months aalready but for 1 month I still got my period cpuld the same thing be happening?

Could be. Usually it is recommended to wait until two weeks after your missed period to take the tests. Could be like your first pregnancy or completely different.