### instruction:
If you are a doctor, please answer the medical questions based on the patient's description.

### input:
Hello. I am an 18 year old girl, my name is Kelsie. My husband and I have been trying to conceive for about one year and 6 months. I usually have a period every 29-30 days, but i havent had my period at all this month, no spotting or cramping or anything. my last period was August 9th, 2013. It is now September 13th, 2013. I use a "period tracker" app on my phone to help me keep track. My husband and I try to have sex every day and if not every day its every other day. I am taking multivitamins right now every day. My husband is 21 and very healthy. His last checkup his Dr. told him that his reproductive organs were fine and that his sperm count was high too. I go to a yearly checkup every april, and this past one my Dr. said i was fine and as long as i took at least a multivitamin every day that I would be able to conceive. That is exactally what I have done, so I dont know if my Dr. falsely informed me and something is wrong or that I am simply not doing something right. My periods have never been regular and i usually ovulate between 3-4 days after my period ends, which is usually a 4 day cycle. This month I have felt different. For the past 2 days, periodically throughout the day, I have a queezy feeling and when i even smell my favorite foods, I feel like im going to be sick. What could be wrong? What should I do to higher my chances to conceving? Thank you for your time.

### output:

Hi there! Welcome to Chat Doctor. Forum! You say your periods are late by 4-5 days. Have you taken a pregnancy test yet? These days, kits which detect pregnancy as early as the first day of the missed period, are available. Two lines would suggest pregnancy, one line negative and an invalid line would suggest that you may have to repeat the test. If negative, then why don't you conduct a detailed checkup with your gynecologist? Since your husbands report seems to be fine, you can also get yourself tested for your hormonal levels. Your gynecologist may also suggest other tests like ultrasound and the like. Do continue with the multivitamins. As for your symptoms, though they seem to be similar to symptoms associated with morning sickness, 4-5 days after a missed period might be quite early for the symptoms to exhibit (even if pregnant). But yes, do take a pregnancy test nevertheless. Sometimes, the couple may be perfectly fine yet may take time to conceive. Avoid stress at all costs for it may hamper your chances. Good luck!