Traveling while pregnant

I’ll be 16 weeks pregnant in January when my husband and I have to go to England for a wedding. It’s going to be freezing. This is my first baby. Thoughts on if I should go or sit this trip out? It will also be our five year anniversary so I would really be bummed if I had to stay back home. Big of course my health and the baby comes first. Any advice would be appreciated! Thanks in advance!