OK here's the deal, I had my period the first week of march, days after me and my partner had unprotected sex. Within a week I had another period, and I was told I might be pregnant. My period was supposed to come on the 31st of march, but didn't show. But weeks later on yesterdays date April 13th I came on again, I don't know what's going on with me ? Help !

It could be your cycle is just off, but obviously pregnancy can be a possibility. Were any of these "periods" shorter in duration or lighter in flow than your norm?

You could try a pregnancy test now, or wait and see what happens when you would expect your next period.