So I had my period when I was suppose to and the I stopped bleeding for five days, I then started bleeding again and stopped on the 27th of August, I had unprotected sex the next day which it also said I was ovulating but figured I probably wasn’t since my period is all over the place. Now I am 11 days late. I took a test on the 6th and it came out negative.

Is my period late because of two periods one month or could I actually be pregnant?