Implantation Bleeding?? (Sorry for TMI)

Anyone who can help? I had a natural miscarriage on 11/4/15. I would have been 10 weeks but told baby died at 6.5 weeks. (Worst day of my life!) and 
On 11/19, I experienced mild cramps that lasted about a 1/2 hour in addition to big globs of jelly-like discharge when wiping.
My husband and I had sex the next night on 11/20. 
11/25: experienced some period like cramping in the evening
11/26: woke up and wiped to have light pink spotting (just a little), went to the bathroom hours later and it was light brown (just a little). Took a pregnancy test and it was negative (knew it was too early). 
Could this be implantation bleeding?