Implantation bleeding?

I had my period the first week of January I don’t remember exactly which day I started and my cycle isn’t like clockwork anyways. I have been TTC for a couple months now and only last month did I buy opk’s... I got a positive and had sex on that day and almost everyday during the month. Two days ago I had this light pink spotting and that was it.. no other spotting/bleeding. At first I thought my period was starting but the spotting never got heavier and resulted in my period and I’ve had sex multiple times which I thought would cause my period to start and still nothing. I took a test this morning and got a negative. Do you think it’s too soon to test and I should try again in a few days? I’m so confused