spotting

Hello! Im new to here. I have a question which starts to bother me a lot. Im not sure when exactly i ovulated  but i had pain in my abdominal from 16th till now. Checking my mucus it should be somewhere between 18th and 19th of july as it was clear egg white consistence. I had just spot of light blood around those days so thats why ithought ovulation might have occured and had a terrible pain both of those days. Now today is 22nd of july and i just saw a little spot of light blood, what could it be? Too early for implantation and probably too late for ovulation bleeding :/ could it be possible that i ovulated before and this could be implantation? Is it supposed to be just a tiny bit of blood or its supposed to be more? My mucus is white and creamy and my cervix is low. my previous period was on 4th of july and my next period is due on 2nd of august. thanks a lot in advance