I'm a week late, I've done pregnancy tests everyday since I've been a day late and I've had one positive which was yesterday. I went to do one today, about midday and got a negative. I rang the doctors and said to them I'm a week late, they basically told me to keep doing a test every 3 days. For 2 weeks, I've got a child already and she's 3 this year I'm never late. What should I do?