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Updated April 04, 2015.

At some point in time nearly every woman wonders if she's pregnant. Perhaps you have some pregnancy symptoms or have a late period. Maybe you've been trying to have a baby can are waiting impatiently for a big fat positive. Either way, this is one of the most common questions that I get asked.

So, I'm going to go through and lay it out for you, point by point, on whether or not you might be pregnant:

• Have you had sex?
  Chances are if you aren't having sex you are not pregnant. That said, if you have been messing around and have had semen near your vagina, even if he "pulled out" or anything, it still counts as sex for the purposes of pregnancy.
• Have you had your period?
  Your period is one of the best indicators of pregnancy or no pregnancy. This is why so many of the questions about pregnancy hinge on the answer about your cycle. That said, it is not an infallible measure.
  1. Was it on time?
     One of the biggest questions about your period was whether it was on time or not. An early period may indicate implantation bleeding, as opposed to your period. Or it could be a very early miscarriage, usually called a chemical pregnancy.
  2. Was it normal?
     The other question you will want to be able to answer about your period was if the flow was normal. Again, a light flow may indicate the implantation bleeding and a heavier flow may indicate a placental problem with an early pregnancy or a problem like an early miscarriage or blighted ovum. If you are tracking your menstrual cycles, this will be easier to figure out. So, when was the last normal period you had?

• Were you using birth control?
  Birth control is the best way to prevent unintended pregnancy. Contraception is available in many forms, including birth control pills, condoms, diaphragms, Depo shots, IUDs, etc. Each has it's own effective rate, but all are more effective than doing nothing.
  1. Correctly?
     Here's the big question, were you using the birth control correctly? That means, for example, taking a pill every day at the same time; or using a condom every time you had sex. If you weren't using birth control correctly, it greatly increases the likelihood that you could be pregnant. If you were, there is still a chance that you could be pregnant, because nothing is 100% effective against pregnancy, except not having sex.
  2. Were there any problems with it?
     There are many things that can potentially interfere with birth control. For oral contraceptives, or the pill, some medications taken, like antibiotics, can nullify the effects of the pill. If you have a condom slip or break, you have a greater likelihood of pregnancy. So did you have any issues like this during your cycle?
      
     
• Are you ovulating?
  This is a harder measure, but if you are ovulating, you are more likely to get pregnant than if you have a history of difficulty ovulating. If you are tracking your cycles and ovulation, you may have a better idea of this information. If you aren't tracking it and have no reason to believe otherwise, we'll assume you're ovulating.
   
  
• Do you have pregnancy symptoms?
  Most pregnancy symptoms don't show up until about the time that you miss your period, so about two weeks after your ovulate, and for some women, about four weeks since their last period. (This can vary woman to woman and sometimes, even cycle to cycle.) There are a lot of pregnancy symptoms out there, but the most common ones are:
  1. nausea and/or vomiting
  2. fatigue
  3. sore breasts
  4. no symptoms
• Are you ready to take a pregnancy test?
  I find that there are a lot of women who will answer yes to every single question about potentially being pregnant and still don't want to take a pregnancy test. I totally get not wanting to see a negative when you really want a positive or vice versa, but honestly, the urine pregnancy tests that you can get at the local drug store or dollar store is nearly identical to the one at a doctor's office, and it's just as accurate. If you're not quite ready for that step, you can try this quiz.