Pregnant on period?

Megan
So I had 4 faint positive tests between Feb 15th and 16th. But then I began bleeding on the 17th. Thought it was AF and was very sad. I bled like a normal period for 24 hours then it reduced to a very light period/ spotting. Today I decided to take a test just because I was confused as to why my period was so short and I got this...
I'm really confused.