Implantation or aunt flow?

My husband and I have been TTC for about 2 months now.

I’m having period like cramps, sore breast,and frequent urination.

I was 3 days late until last night I started having extremely light spotting that was light pink, today it was the same until end of day it picked up still pink but heavier (not heavy flow ) not a flow at all only when I wipe . Could this be implantation bleeding or weird period ?