Faint or no line?

My son is 7 months and 3 days old. Since having him my periods have been spot on regular. Last month I was a day late & today i’m going on 5 days. I have been extremely dizzy lately & it’s very randomly throughout the day. I have no motivation & i have no energy to want to do anything. I been having cramps and swore it was going to start last night but nothing this morning. I took a first response & I feel like i see something faint but not really sure!