Possible Pregnancy Concerns: Medical Advice & Information

Question
Well i need some help. My last period was dec. 15 2005 and right after i had my period i got phneumia.. was really sick and finally got over it well around jan 5 or 6 2006 me and my boyfriend were messing around..we never had sex but he rubbed the top of his penus around my vignia...im worried...i know its very unlikely that i could be pregnant but im still worried..Is it all just in my head..and my missed period is being caused by stress...what should i do? im 15, i have no kids.did phneumia have to do with my missed period..i got a shot of a high poured antibiotic? Im not having sickness, boob fullness, heartburn or frequent urnation. But last week i was having nipple soreness and im really stressed about all this..Im having a lot of stress at home, and my boyfriend. i would really aprecate it if you would help me out...i have no access to any lab or pregnacy test..im relying on you and please help me!

Answer
If you normally have a 28 day cycle (from the first day of your period until the first day of your next period) ovulation occurs on cycle day #14. You can ONLY become pregnant if you have sex on cycle day #13, 14, 15, or 16. If your last period started on December 15, you would have ovulated around December 28 and you could not have conceived after December January 1. However, if you have missed your period, the only way to know for sure is with a pregnancy test. You were due for your period on January 11. The best time to take a pregnancy test is seven days after you missed your period. I would recommend that you get a home pregnancy test and take it.It will be accurate at this time. They are not expensive and you can get a pregnancy test at any pharmacy. If you absolutely cannot get a pretgnancy test, you can safely wait to see if you get a period in February. If you don't, you have to get a pregnancy test.