Spotting 3dp5dt

Tuli • 39yo. Pregnant after 1st FET. Ttc since 05/16. 2 iui, 2nd ended in chemical. Cervical stenosis after lletz

Today I am 4dp5dt. Yesterday I had very small amount of brown spotting mixed in the progesterone pessaries discharge.

I read that it can be either the progesterone irritating the cervix or implantation bleeding. Anyone have any insight?

I have no symptoms yet :/