Restaurant nausea only 5 weeks

Br

My husband and I went out to eat with my in-laws, (we live with them)and we went to a Mexican restaurant. This the first time we've gone to a Mexican restaurant during my pregnancy. The table next to us got fajitas and the smell of them made me want to throw up. we had just finished our food and I already eat pescatarian ,so my Mexican food was vegetarian. so the smell of the fajitas ,apparently the baby did not agree with. I had to leave and go to the bathroom so that I didn't throw up all over the table. It's so hard to hide your pregnancy in the first trimester. I just want to tell them. But my husband wants me to wait until our first trimester is over, since this is our first baby.