Hi, my name is tiffany and I am 19 years old. Today is now the 16th of aug. And I started my period. My last period was 2 weeks ago and it is back again. Me and my fiance had unprotected sex twice right after I got off my period the time before this period. I was having a bad headache and sorn nipples for awile but that went away, it seems like I am more tired than usual and wore out, I also have been a little nauseated and have had a little bit of a hightened sence of smell. I think that I could be pregnant because my friend had 2 periods in 1 month and my sister in law had her period all the way up until her 4th month of pregnancy. Should I wait for next month or get a test now? Please help!!!