being pressured to have a baby

My friend is married and says her marriage is struggling right now and her husband believes a baby will strengthen their relationship and he is pressuring her to try to have a baby she just got the iud in not too long ago and I told her not to remove it and it isn't his right to say what happens to her body if she doesn't want a baby then she doesn't need to be pregnant and she fully agrees with me! What should she do! I'm in my 20s and married and my husband understands the whole "my body my rules" thing because he's not going through the pregnancy I am. But my friend is finally in her 30s. What is your opinions!