pregnancy

Had protected intercourse (condom don't break) and was on the whole time and he pulled out then ejaculted the 28th of oct according to app I ovulated the 20th and was firtle 15th-21st was suppose  to start period nov 5th but ended up coming the 3rd and last 4 days heavy I tend to worry quite a bit and stress myself my next period is due dec 4th any need for worries?? And when would be a good time to test?