Spend time with her
You need to spend a lot of time with your wife in this phase. Your time will let her know how much you love her and how much you care. Watching a television show, going out for dinner or having a conversation with her are small things that will delight her.
Cook food for her
Cooking food for your wife is a great gesture that your partner will remember for a long time. Make dinner for her after coming back from work and eat with her. She will certainly be impressed but make sure you avoid things that she does not like.
Clean the house for her
You need to understand that your wife cannot do all the work alone because of her condition. Help her with chores and cleaning the house. This will definitely reduce the work load off her and she will feel relieved.
Control your temper
Your wife will have a short temper during pregnancy and she will be very sensitive. You must compromise and understand her behaviour as she may be suffering from depression because of staying alone all day.
Give her what she wants
She may be having cravings for a lot of odd things. For example, she may ask for ice cream in the middle of the night or she may be hungry early in the morning. Try to give her whatever she wants as you must ensure her happiness at all costs.