Unsure on what to do...

I am 25, have a daughter who is almost two and am married.. My marriage is falling apart and I have just decided to leave my husband.

2 weeks after making that decision I found out I am pregnant.

I am only 6w3d and had a dating ultrasound yesterday were I didn't get emotional toward the baby at all.

I am feeling guilty bringing a new child into this world and into a broken home.

I don't currently have anyone I can speak to about this.

Honest advice would be greatly appreciated.

*I am located in Australia.