I'm in my early stages of pregnancy with my 5th child, but I feel like I have prolapsed, do I need to seek help?

Yes. Increased progesterone, early in pregnancy can cause, in very rare cases, uterine prolapse. Combined with 4 deliveries, it certainly could happen. Your uterus will grow out of your pelvis as your pregnancy progresses, and the problem will resolve.Until then you might need a pessary to lift the uterus up so it doesn't get stuck low down as it grows.