Pregnant Girlfriend pushing me away to the point it is damaging our relationship?

These are perfect examples of Hormone changes. ( My wife went through the same crap ) Males can not understand, or keep up with the sways from hot to cold. All you can do is retract a little, but be there when she needs you. Support her, but don't believe everything she says or does. If you love her, hang on, the ride lasts 9 months. ( Been there done that, been married 38 years. )