Hello, today is CD5 for me. I had just came off my 4 day period, this morning I decided to take an opk test from the dollar store just because I had two of them in my room (and still feeling pregnant). It immediately turned into a strong positive. This was taken with my first morning urine around 7:30am after taking my bbt which was 97.2. What would be the reason I am seeing a strong immediate positive on an opk test so very early in my cycle?