Faint positive, so nervous!

Laura

I had a positive opk 13 days ago. I had a chemical pregnancy last cycle and did have a negative preg test after I began bleeding then. My AF is due tomorrow or sat. This is my first cycle since my chemical. Yesterday and this am I have vvfl on frer. I’m so scared to get excited. I’m afraid it’s gonna be another chemical. I did have what I believe was implantation bleeding 4 days ago. I am waiting for my ob to call back to get an hcg level drawn. Anyone had lines this faint and have a successful pregnancy??