Could it be Implantation ?

Donatela

I didn’t take any pictures (I wish I did as it probably would of helped) but my period was meant to start on the 6th July but I still haven’t started. On the 3rd and 4th of July I had a very light patch when I wiped and I thought my period would start so I put a pad on. When I woke up there was a very light pink /brown patch on my pad and then it all stopped no period nothing. I had cramps and have been waiting for my period to come but nothing. Since yesterday my boobs have been so sore but today I couldn’t even wear a bra they are so swollen and my nipple are erected and so painful. I’ve got an appointment on Monday with my doctors as me and my fiancé have been trying for nearly 3years to get pregnant but I just wanted to know if anyone has had this and what the outcome was. My last period was on 3/6/22 and I did do a clear blue test and it came BFN.