TTC baby #1 Just finished my period on 8/29 and now I am spotting.

Okay so I have an EXTREMELY irregular period. I haven't been on birth control since last year. I had my first period in March then July and August. In March I had two which I suspected from my body balancing out. Now I just felt light cramps and ignored them. I went to the bathroom and saw this. Sorry for the TMI but can anyone offer advice?? This is my first TTC and I am worried