Ok I'm not sure what's going on. Why is my opk darker yesterday? Then today? I take it every day at the same time. I started on cycle day 4. This is my first month with opks and doing bbt. Any advice?
I kno it's not positive, I'm smart enough to c that, I was told to start 3 days after my period started by my physician and by the box. I started CD4. I just want to kno if it's normal for it to be darker one day and lighter the next when your not oing
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