Help - TTC, with Cyclogest supplementation

Hi there, I was wondering if anyone could help as Dr google is throwing up lots of contradictory information! I am currently in my TWW, taking Cyclogest to boost my progesterone levels. I have started having spotting (12 DPO) and can’t work out if it’s (a) Implantation or (b) my period trying to start but being suppressed because of the Cyclogest! Has anyone had any experience/advice for me? It’s still too early to do a pregnancy test. I don’t want to stop Cyclogest incase I’m pregnant, but also worried that it’s stopping my period arriving (and will impact my next cycle!) Sorry, in a flap!