Could this be my month?

My Dh and I are TTC Baby #2. We BD'ed Wednesday night, I got a positive OPK on Friday and we also Bd'ed Sunday night. I had some cramping and weird twinges Friday through Saturday. Wondering if we timed it right..do you think there is a chance on either side. I'm thinking Thursday and Friday were th best days but my DH was traveling for work! I know I just have to wait (and hope AF does not come) but what do you think the chances are? Would Wednesday have been too early to have a chance to conceive? My last child we TTC on my actual ovulation date!