Help... mother/daughter talk coming my way.

Kelsey
I don't know what to think of this... she told me she wants to have a girls day with me next Saturday which is all cool and stuff but the last part of her message is what worries me deeply... I'm 21 yo, my mother doesn't know anything about my life, the I moved out of my apartment in July to live at my BF's mom's house or that I lost my job last month or that I am almost 6 weeks pregnant... I know she isn't too fond of me getting married to my boyfriend considering he already has 3 other kids and 2 previous marriages. I kind of don't want to go... what should I do or say to her? It's all so confusing.