Hi ;) My question is this: My last period ended on April the 15th I think it started the 11th? I had unprotected sex the 15th and 17th-technically was early 18th and I haven t had my period yet this month. The 1st two weeks of this month I was having cold/flu like symptoms,but never really got sick. Just felt nauseous,headaches and appetite would come and go. Last Thursday after I woke up I ate a little something and not 5 minutes later I threw up A LOT. I NEVER throw up! I think I could be pregnant,but am unsure how late I am--assuming I should have my menstral every 28 days after each one-I m now a week late? Do I sound like I could be pregnant and how late am I ? Thanks, in advance.