For these past few days, I have been feeling disgusted every time I wake up. Whenever I see or smell greasy foods, I feel sick. I feel like throwing up but nothing comes out. Me and husband have been making love every other day without protection. I feel nauseous and I force myself to eat because I get disgusted very easily. I was supposed to get my period this week but I haven't had it yet. I also don't know if I should take a pregnancy test or if I should just wait.

The only thing you mentioned that is a possible pregnancy symptom... is a late period. The rest are PMS.

You have to wait until you are two weeks late, then you take a HPT first thing after you wake up in the morning, the very fist time you pee that morning... or you have to wait until the next day.

With the frequent sex, nausea, heightened sense of smell, and lack of a period, pregnancy is obviously a possibility. Since your period was due this week, give it a bit more time to see if it happens to show up late. If you still don't have a period after giving it some time, then either try a test at home or you could see your doctor for a test in the office. If you are pregnant, they will want to confirm it anyway. Since you are apparently trying to become pregnant, it is wise to already be taking a prenatal vitamin or a multivitamin with at least 400 mcg of folic acid in them.