Am I pregnant?

Niamh

So I had a miscarriage back in November and my periods went back to normal again in February. For some reason I missed my period in May but I put it down to stress. I had a 3 day period then in June and my period was due 3 days ago. Between June and now we only baby danced should you say last Saturday so was just wondering could I be pregnant? Did anyone else find out a week after they had sex?