(Should i give my mum a chance to be grandma??

I have a dilemma... I hadnt spoken to my mum in over a year due to her disruptive and abusive behaviour. Approximately 2 weeks ago she contact me out of the blue begging and demanding i look after her dogs while she goes on holiday. I said no as i have 2 dogs of my own which are female and 1 is due her season soon, and both her dogs are male. It would mean i have to leave me dogs at mine with my partner who works nights, my dogs hate being in thier own so while my partner works they would create a lot of noise and upset my neighbours, not only this but i work 9-5 Monday to friday and her dogs would be on thier own from 8-6... Its not fair on anyone or the dogs.

Anyways i said no and was friendly and civil and trying to come up with ideas and other ways she could get her dogs housing while she was away. She ended up kicking off at me calling my partner and i smack heads which we most definitely arent, calling up the social services and saying she no longer wants me siblings (15 and 16) and just being plain horrible.

She is a long term alcoholic which i have been told by my siblings she has cut down on her drinking, but all my life she has been very horrible and abusive and manipulative towards me, and last year enough was enough and my partner and his family helped me see they love me very much and gave me the strength to not get involved with any of her crap anymore.

I am pregnant, 12 weeks pregnant and she found this out from my siblinfs and the day after calling me a smack head starts being nice and is like lifes too short to be mean to eachother and you hear of people losing thier families in tragedies the time and she wants to be involved. I didnt respond and after a week of long thinking and serious talks with my partber i thought maybe she could get involved but with some ground rules so i sent her a text (screen shot of texts to follow). I feel i have been reasonable and she responded today and just seemed really arsey and not acknowledging she has a problem or acknowledging my conserns, it made me feel like she thinks im delusional or something

I am not sure where to go from here, how i should reply or not reply, what i should or shouldnt do... Im stumped. If you have made it this far through my rant, thanks. Any advice would be great. Thanks guys in advance!! Xx