I have a question. My husband and I aren't really trying to have a kid, but not really preventing it either. He pulls out, but that's the only form of BC. I had my period on march 24th, then noticed pasty brown spotting yesterday when I wiped and the slightest bit in my panties, on April 14th. Could this be implantation bleeding? I'm not due for my next period until the 24th.