Please HELP!!

Hayleigh

So my periods are a 27 day cycle and there very regular. I had my baby 4th baby 10 weeks ago and I have had 2 normal periods. Well now I’m 6 days late. I have also been having unprotected sex with my partner. I have done a pregnancy test and there was a faint line. This is not from my 10 week old as I had tested with him at the doctors and it was negative. The reason I had my urine tested was because I was looking to go on to the pill. I was due my period 6 days ago So I tested a few days ago as I am late which was positive, i then tested later that day and they were fainter or negative. I then tested the day after and it was positive then I tested again and it was negative. I have tested today and there’s faint lines but I can’t get them on camera. il post 👇🏾so you guys can see. However since then I’m getting negatives or even fainter positives than the tests below. I am currently breastfeeding and when i looked online there was a few stories where they were pregnant in the end they just had faint positives that never got darker. I also see that women who breastfeed are more likely to conceive twins. 🤷🏾‍♀️. I’m feeling abit stressed out as when I see the positive result I got my head around it and now when Iv been testing again it’s either there faint or hardly. I’m loosing my head. Any one else experience this ??