Hi, I haven't been trying to get pregnant, I have a coil in but this month has been odd, crampy and weird dreams and loads of CM I ov'd day before yesterday but my Boots own ovulation tests keep getting darker?? Anyone know what that means? I bought them because I needed to know what the cramping was and it was 3 for 2 on bloody expensive pregnancy tests.... But they're freaking me out TBH. Any reason for opk's to get darker AFTER ovulation?