spotting 2 days before AF due.

Brittney

So yesterday evening I started to have brownish discharge/spotting, it went away over night. I woke up this morning and it's been pinkish with sticky/egg white cm. This is only my second round on clomid, with my first round my period came as normal just started the day it was due and when I start it is usually heavier and no spotting before. Could this be implantation or just af playing tricks?