I noticed 2 days ago that my cat is pregnant, but she has now started bleeding, I thought she was in labour so left her in a room with food and water but a day later she still has no kittens and is still bleeding! Is this normal to go on for so long? Please help

She needs to see a Vet - it could be a variety of things. She needs to see that Vet today.

No, it's not normal.