Anyone else feeling insecure?

So my husband is on the good looking side. I'm more of plain Jane. He loves me for this but being pregnant and all I don't feel so attractive. Today we had dinner and the waitress turned her backside to me and told my husband you have a beautiful smile. To that he pointed at me and said my wife thinks so too. Okay I give him props for that but I was so upset that the waitress did this. I wanted to throw my mashed potatoes in her hair. And drag her out. Am I over reacting? Please tell me this is normal? I never was the type to get jealous until recently. 7 months along and it seems like for ever...