[Sarah0912]

I had unprotected sex last month then the day after I had my period. Then this month I missed my period. Could I be pregnant?

[jenniepepsi]

Its possible. But how old are you? If you are still young, it could simply be irregularity.

In fact, I often start my period, the very day after sex, even if my period isn't due yet. Its like a 'jump start' if you will.

You will have to wait it out and see if you miss another period, and then take a test. Don't stress just yet. But make sure you stay safe and always use protection!

[Fr_Chuck]

Yes that is very possible, if you had sex the day before the period it is possible to be pregnant,
If you have missed this month, wait a week after and try a pregnancy test with the first urine of the morning