:hiya all! I had taken duphaston from jan 1-10, and was expecting my period by Jan 14 (last Sun) since my last period on 14 Dec. For the last 3 months, i have been getting my period on the 14th of the month after i have my last pill on the 10th. However, this time i am 4 days late, which i am quite worried about. The thing is, my doc diagnosed that i was a bit deficient in Calcium and Vit B12 (and hence the imbalance in some hormones) and gave calcium supplements that contain, calcium, phosphorus, Vit B as well as a trace of soy isoflavones. I have been taking those twice since 1st Jan. My question is, could soy be the reason my periods are delayed this time? I have been testing almost everyday since sunday, and its a BFN everyday If the supplements are given to regularise my hormones to help me conceive, isnt it ironical that they arent bringing on the AF, neither BFP?:confused2: Since my last three cycles were so on track, this uncertain wait is driving me crazy!!!:drowning Any inputs from you experienced ladies pls??? Thanks!