I've been using them for over a year now, I've always liked them. Now that I'm on medication (clomid now femara) they are all over the place. Friday PM circle Saturday am solid face Saturday evening circle Sunday morning solid face Sunday afternoon circle. WTF! Ive had very little O pains, little ewcm, my BBT hasn't spiked yet. I'm not monitored either. Soo frustrating! Has this happened with anyone else?