implantation bleeding?

Teresa
We have been TTC for 3 months now and each time my period has come early. The first time it was 4 days early and this last time it was 6 days. I have ALWAYS been very regular so this was not only a dissapointment but a curious shock as well. This past month I took ovulation test and found I did ovulate a little earlier than my calendar showed I should. I thought I would have been able to take a early test 3 days ago and they have all been negative since then. Today when I went to the bathroom I wiped and there was a little tinge of brown. Could it possibly be implantation bleeding happening later than it was supposed to? Or just normal possibly pregnancy spotting?  Had no issue getting pregnant with my first so this time around I'm starting to get discouraged. 😳 Thank you!