I have been taking clomid since October. Started at 50 mg and jumped to 100 mg. last time I got a positive OPK was December. I have figured out that one of my ovaries ovulated with such a small amount of egg stimulation that it is not detected and I almost have no period. I took a random OPK a few days ago out of the blue and what do you know! A BIG FAT 😀! let's hope since I am ovulation that things are finally working regularly!!!!