Has this happened to you?

So this cycle AF decided not to visit me, so I tested twice a few weeks appart, both times getting a bfn. it's now cycle day 34 and I think my period is starting, allthough I'm not exactly sure, basically when I whip I'm getting very light red blood which looks like it's mixed with very creamy cm, however I'm not bleeding properly ...... I'm not sure if I have exactly made myself clear here but has anyone else had this and is this classed asa period?