Bfp before AF due, almost no symptoms

I really thought I was out this month. Apart from a slight feeling of wetness on dpo 9&10 and a few lower abdomen twinges that reminded me of my last pregnancy on dpo 9&10 also, I had no early signs of pregnancy (last pregnancy I had white cm, strange dreams and sleeplessness before AF was due and got my first very faint Bfp at dpo 7! Crazy early, I know). Then last night (dpo 10/11) I was extremely wakeful and thought I was coming down w gastro due to extreme nausea and stomach pains (gastro type ones, not AF type ones). lo and behold I tested this morning (dpo 11) and got my Bfp! Have had some dizziness on standing today and nausea has toned down but not gone away.
You should have seen the smile on my face when I saw the two lines on my POS!