Weird Pain 4/5DPO

C

Hi everyone! Today I have been experiencing a weird pain that I would like to ask your opinion about. It feels like this sharp intense pain on the sides of the uterus, kinda as if someone was putting a needle there. It has been happening on and off for the whole day and seems to be always on the same spot. Any idea what it can be? I’m normally super aware of everything happening in my body and I never had this before in other cycles. Thank you :)