Please help me!!!

To
Okay ladies!! So Sunday I took a test (second picture) I was 10 dpo it was faint positive. So yesterday I took a test and it was faint positive. So this morning when I got up I took this test I put the drops on it I put my hair up turned around put it in my pocket went to the living room sat on the couch and pulled it out and it had this line the line popped up less then 10 min. I am suppose to start my period thursday. Right now I am having dual cramping. The reason why I am worried is cause last month I had 10 positive test even one that said yes went to my health department they did a test and it was positive and 5 days later on thanksgiving night I started bleeding went to the er they said my test was neg. So I had a chemical pregnancy I'm scared this is going to happen again. So do yall think it is possible that I am pregnant again. The line keeps getting darker.