While you took the emergency contraception
appropriately, the combination of that and the primolute undoubtedly have affected your cycle and likely when you ovulated. While the effectiveness of emergency contraception is excellent, it is not 100%. Here is what I would recommend:
1. Repeat the pregnancy
test in 1 and 2 weeks from now
2. If you are on birth control pills, stop them until you get your next normal period and restart them on the Sunday following the start of your period.
3. Use backup until then - i.e. condoms
I hope this helps!!