Advice

In September, I had sex with my Fiancé a day before my predicted "fertile" window and yes he came inside me. A week later, I had really sore boobs and I took a test, it was negative. The next day I had some bleeding, light pink, was in the toilet. It lasted about four days, little to none clots and I usually have a lot. My sore boobs lasted until the third day. Then the feeling started to go away. A week later around my predicted period, I have been feeling very nauseas (if I don't eat, I feel nauseas and when I do eat, it gets worse) and emotional. I took a test and it was negative. I have one more test left, when should I take it? TTC