Breasts and milk

I breast fed my 4 year old for almost a year and half, I remember that feeling of my breasts just FILLING. That tingling feeling and just feeling them get super full. This is happening right now and I’m only 33 weeks. I took my bra off and the colostrum is Flowing like a waterfall.

Is this normal? I know leaking and stuff but this much? It’s like I’m breast feeding already! It’s so strange of a feeling.