I had implantation spotting - not that I knew what it was at the time! I thought my AF had come early and was disappointed. It was a few days later that I thought it was strange that my AF hadn't come properly (IYKWIM) so did a test and got my first BFP!

We are TTC #2 now but have only just started. I've only had one AF since my DD was born so have no idea what's going on. My AF is due tomorrow (based on my 28 day cycle pre-pregnancy)and I had some pinkish brown discharge (tmi sorry!) last Friday. I got excited when I thought it might be implantation spotting and even did a HPT I had left in the cupboard on Sunday. No luck though .

Sorry (less about me now!) For me the implantation spotting was minor, like what you've described, and I remember thinking when I did the HPT that I'd felt PMS-y that day so shouldn't get my hopes up. So yeah, could be implantation spotting!