Brown spotting after 5 day transfer

[IVFmamatobe]

Hi everyone. I have recently had my first embryo transfer & on 5dp5dt I started with pink spotting, I’m now on 8dp5dt & still it has developed into dark brown spotting. I also had really tender breasts which have subsided now and the decrease in symptoms has made me question everything. Spotting is not unusual for me before my period so worring this is the way it’s going. Has anyone had a similar experience? I have really worried myself thinking it hasn’t worked. My clinic have asked me not to test until 17th which will be 11 days. I was on 2 cyclocest a day which my clinic yesterday told me to up it to 3 a day.

Any advice would be appreciated so much x