I had my period a week early in July it cane on July 15 through the 20 .it was supposed to come on July 23.it came on again August 1 through the 11 I had sex during my period which was the 4 could I be pregnant

Yes. Any time you have sex, even during your period, pregnancy is possible. Even if protection is used.

Wait until your period is a week late, then test using first morning urine. If that test is negative, wait another week, and test again. If that test is negative, wait and see what happens with your next period. If you miss it, test again or get a blood test.

Your period being early, has nothing to do with if or not.

But, you had sex, even during the period, can lead to pregnancy. At this point, you now have to wait till next month and see if you miss that period or not.