I have been with my dp for 18 months now and we have been ttc for 5 months. I have 2 other DDs who are 7 and 8 with my previous partner and had no trouble concieving (in fact both took only 1 week). My dp has a bad back condition so fun time is limited! I have been using the ovulation sticks off the internet for the last three months but have failed to get a positive ovulation result at all. My periods are pretty regular usually between 28 and 31 days. I know im probably being paranoid but im worried that im not ovulating due to the lack of positive result on sticks. Has anyone had the same problem with these ovulation kits as im worried there could be something wrong.