Not sure what to do...

Heather

I’m 42, and a three-year-old (almost 4) whose still nursing once or twice a day. We are weaning THIS WEEK. My periods have not been regular since I had my son and my doctor thinks it’s more age-related than anything. My last cycle was 56 days! Longest one I’ve ever had. I decided to try an OPK this month. I started testing on cycle day 10. It is now cycle day 20 and still no LH surge. Do I buy another kit and just keep testing? Is it possible that the minimal breastfeeding is still keeping me from ovulating? So discouraging...