Trying to work out whether I could be pregnant, even though I've had three negative tests. I've missed two periods now. I went off the pill a few months ago and had a bleed straight afterwards and then a normal cycle with a period 30ish days after I came off the pill. Then a couple of weeks after this period I had sex twice in 24 hours, forgetting to use a comdom both times. Then the day after these encounters I'm pretty sure I ovulated due to the state of my discharge. Then since then I missed one period and now I'm a week late for a second period, so I haven't bled for 9 weeks. Ive done three pregnancy tests, two just after I missed the first period and another one a couple of weeks after this. They were all negative but I'm worried I could still be pregnant? There's no reason why I should have missed the first period, I'm stressed this second time around though