I'm four days late for my af but I have tons of symptoms and my cervix is low and soft tons of cm that is slippery/creamy exhausted and high bbt sore boobs and more! I tests on 7-8dpo and got to vfl on each (the second day darker than the first) but now I used some other brands and I haven't gotten any other lines could it still be too early? When should I see my doctor and when should I test again and with what kind of test? Ive never had any luck with first response so far