S.L.
I haven't experienced this myself where it relates to major life changes. But I know how it feels to just feel more emotional or overwhelmed with life in general. You sound like a woman that is just trying to deal with a lot of changes. So just guessing, I think you should seek help if you are fed up with feeling this way or if you have ever had a negative thought about your baby.
The first 4 months of having a baby should be heaven when you and your baby are together. It's one thing to be frustrated with all the changes, getting the house clean, shopping and a whole host of things that you need to learn to do with baby around. But when you sit down with your child the rest of the world should melt away. If you find yourself feeling angry with the baby or like anything bad you are feeling is the babies fault, then yeah, you should seek help.
Suzi