Spotting after mc

I had a mc on 4/27 at 4w6d. The bleeding stopped within 3 days and my levels went back to 0. I tested a few days ago just because I felt a little off and my boyfriend and I started ttc right away after our loss. I thought I saw the start of something but I’m not completely sure. 2 days ago along with today I’ve had some very light hardly noticeable spotting. It’s only when I wipe and only happened one time each day. I’ve also had lots of milky white/creamy cm the past 2 weeks. I’m wondering if anyone could help me out? Start of AF or possibly implantation bleeding?

Here’s my year from 2 days ago when I thought I saw something.