Late period and this happened

Got my period 27 days late after I did my pregnancy test I got a vevvvery faint line but I didn’t had any other symptoms for pregnancy so I was sure that I’m not pregnant,but today I when I got period it was the worst pain level is 10/

10and cramping is really bad😭 I hope this is not what I’m thinking.

Update: I had a failed pregnancy miscarriage, confirmed with doctor.