Hello Ladies, we have been TTC since 6 month. This cycle , I had positive LH surge using clear blue and pregmate OPK on 27th May 2018. I went in for progesterone blood test and they confirmed that I did ovulate. so I am guessing I might have ovulated one day after positive LH surge which would be 28th May 2018. Today is 15 DPO and i still show BFN using First response pregnancy kit . I tested with morning urine and it came BFN. Also, I didn't get AF but I have mild cramps and threw up couple times yesterday. Is there a chance I can get BFP or do you think AF is on the way?