The discharge you have right now could probably be originating from the hormonal
imbalance. It looks like a breakthrough bleeding
. OPKs are usually predictable when performed following the instructions strictly. Sometimes, they may not pick up the LH surge early enough. Since you are not menstruating naturally, it would not be right to say that you have a missed period. It would be ideal before you commence induction to go through the protocol investigations again and in view of your limited ovarian reserve
and the loss of a tube, I would suggest ART for you. Please visit an infertility
specialist for further advice. Take care.