So I'm 23 I am not super fit but I'm not obese I am 10-15 pounds over weight in my book. I've had somewhat normal periods but since I've been ttc I've went from a 29 day cycle to now a 25 day cycle .. We've been trying for 4mnths not that long ..( Ik ) but I just don't understand why it's not happening I'm hitting my positive opk days !:( anyone have had the same problem and then finally conceived ?!