The bleeding you had a week after is called withdrawal bleeding. It happens when the hormones leave (withdraw) from your system. It is what women on birth control pills call their period.
It is also very likely that a cycle or two after taking emergency contraception might be disturbed. It can be late or even absent. You are also stressed which will likely cause futher period delays.
The only way to find out is to take a pregnancy test. The chances of you being pregnant is however very very low because of the phase of your cycle you were in when he ejaculated, and because you took the pill very soon afterwards.
I hope you have made a better plan for pregnancy prevention now.
Best of luck!