I Had unprotected sex on July 22 but he pulled out started spotting on July 31st only when I wiped there was blood then on the 16th had a regular period lasted 7 days now September 7th I'm Spotting again I have all pg symptoms except vomiting can anyone explain what's Happening??

No one, not even a doctor, can diagnose online. So no, we really can't tell you what's happening, and you won't find answers on a computer.

We can guess. I'd guess that you're not pregnant, since you did have a period after the sex and the spotting.

You could just be having an off month, or you have an STD, or an infection, illness, stress, pregnancy etc. etc. etc.

If you're concerned, see a doctor.

Good luck.