HELP!! Pregnant while breastfeeding and no period??

I took this test last night and see a vvfl… I have no idea how many dpo I would be because I haven’t had a period yet. Tested based on how I was feeling. Then I took another this morning and it’s there but a little more faint and then a couple hours later almost nothing but urine wasn’t as strong. I figured it would have been stronger this morning?

This pic was last night and the next next pic shows last nights and this mornings…

Chemical?? Cramping but no bleeding…. HELP!