Pregnancy or bad eating?

Hello all!!

I am slightly worried I could possibly be pregnant. My fiancé (we’re very young, 16 & 17, but we’ve been through so much together) and I have sex almost daily. I have an IUD in, and neither of us have STD’s and have been recently checked, so I don’t use a condom when we have sex.

Two days ago, I was feeling kind of sick at night and that carried on til the morning. I felt okay after awhile, I got up at 5:00 am and it went away around 6.

This morning, I got up at 5:00 but didn’t feel very sick. Now, at 6:40 AM, I feel really nauseated, right after my fiancé complimented me a whole lot. I went to the bathroom, but I did not throw up.

Could I have felt sick this morning from the compliments and hunger? I have a terrible eating schedule & diet - I’m not overweight, I just don’t eat too healthy. Not soda & chips regularly or anything, just not enough vegetables and things like that.