Looking for feedback

So we have been trying to conceive for two years with no success. I have one child and had no issues getting pregnant with her. I have a very abnormal cycle, last cycle I bled two weeks and then am currently six weeks without another period and am not pregnant. We have checked levels on myself and my husband and has testing to ensure there was no blockage and my eggs can move freely through the tubes. We have tried clomid with no success. Has anyone else experienced this? My doctors continue to tell me there is nothing medically wrong but I am just so frustrated.