You probably had a miscarriage. It is very common to happen like that. Some women don't even realize they had a miscarriage since it just appears that they had their period.
It was likely a chemical pregnancy. The egg never implanted.
it might be a chemical pregnancy. I would try to get checked out and bloodwork. Good luck
I no I went to the doctor on the second of this month and I wasn't preg two weeks after I took the pregnancy test and it was positive ima make and appointment