Fed up!

I just found out I'm pregnant and just got a new manager at work who I really do not like. I never really liked the job I only been there because of the money, and it's not even that great I always get messed around with hours like today I did 3 hours which is the most pointless thing ever! By the time I took my daughter to my parents house and got to work it's taken me an hour. Just to come home three hours later! I also have a second job but it's only 7 hours a week I been trying to get more hours there and push it forward but nothing! I'm just so stressed out by my main job and want to leave but I know I have no money and can't expect my other half to pay for everything. But I'm just so depressed there! Any advice would be nice!