Heavy Bleeding day 1 Implantation?

So today I was suppose to be 9dpo but I started having heavy bleeding like a normal period. I am usually regular on my periods Q28D && this app has me tracked to the T on when I start. Does anybody else experience bleeding kinda heavy on the first day of implantation? Trying to keep my hopes up! I really want to have another kid but haven’t been able to conceive :(