Implantation spotting? or Something else?

Hi ladies!

So my hubby and I have been trying for baby #2 for awhile now but it hasn’t really counted because I wasn’t ovulating until last week (I haven’t had by cycle since my son was born 10 months ago -and obviously the 9 months before that I was pregnant). Well I FINALLY got a positive opk last Tuesday! Then yesterday I got bright pink spotting which was a bit alarming since it’s been so long since I have had any bleeding at all. The timing was right for implantation (7dpo) and there hasn’t been any more bleeding or cramping since then- but I’m trying not to get my hopes up too much. Has anyone had this during their 2WW and then gotten AF a week later? Or are my chances pretty good that this is the real thing?