>Threads merged to keep all information on this subject in one place.<

My partner and I had sexual intercourse about a month ago and I took the morning after pill 3 days later. I started my period asusual and it wasn't different. But then a week later I started again but it was so light I didn't have to use anything. It was longer then usual then I started again about 2 weeks after the second time. I have been getting nausia but not throwing up. Could I be pregnant?

Yes, the pill isn't always effective.

It also throws a woman's cycle off for a period.
That's why frequent use is not recommended.

But, yes, you could be pregnant - I doubt it, but it's possible.

I have calculated that I am 2-4 weeks pregnant. But not quite sure. I have bubble type feelings in my tummy. It feels like my tummy pulling tighter all the time. I have had hecups and nausea but not throwing up. My tummy also feels harder then usual and my back sore. I have had spotting but not all the time. And every time I think of food I want to throw up but once I start eating I can't stop. Please can someone tell me if I'm pregnant from just that

No, no one can tell you without lab tests and an exam.