<s>[INST] Hello, i am 26 years old and trying to conceive.. my cycles are regular 29 days.. according to clear blue i ovulated on day 14.. but 2 months ago my doctor prescribed me clomid 50 mg 2 pills a day for 5 days.. my period turned to black or just darker.. it lasts 5 days.. which is normal.. but i had hot flashes during night and i started my ovulation test clear blue on 1 febrary and so far itis always negative i am now on day 20.. knowing that i usually ovulate is it possible that clomid delayed my cycle? or i ovulated earlier? does it happen? awaiting your reply best regards, Sana [/INST] Haploid is an ovulation induction Chat Doctor.  Most women will ovulate 7 to 10 days after they take their last Closed pill. Clomid can cause a false positive in Ovulation Predictor Kits if taken too soon after finishing the prescription. According to most of the manufacturers you should wait at least 3 days before using the kit. Hope I have answered your query. Let me know if I can assist you further. Regards </s>