Ttc for baby #3

Theresa
I've been trying for about 4 cycles now. No luck yet. But on April 7 until now April 16, I've been spotting off n on. Could it be implantation spotting or my aunt playing tricks on me. I need some advice. Anyone out there could help me out. I really want a baby so badly. I'm 39 going on 40 in December.