My period only lasted 2 days instead of 7. I’m having back cramps. Could I be pregnant?

If there’s a risk that you might be pregnant it’s a good idea to take a pregnancy test, but this situation alone does not necessarily indicate pregnancy. While periods should generally be predictable in duration and frequency, many things can cause them to change from month to month. If you take a pregnancy test and it’s negative, watch your calendar. I suspect your period will re-adjust itself soon.