Just need to vent

First last week my bf asked me for $100 I gave it to him, then he just keeps freaking asking it’s getting very annoying.. he asked me to pay for his grandma breaks, made a ballon release for his cousin the other day then called while at the store asking can I buy the balloons, asked me for $35 a few minutes later.. last night he called me asking for $11.50 for a pack of Newport’s.. plus asked for random 20’s throughout the week. He gets paid weekly but they take $200 out of his checks for child support for one of his kids.. he just got freaking paid yesterday why is he asking me to buy him cigarettes, and then literally just asked me for $100 and if I can’t give him that $50. I’m annoyed, I’m 33 weeks pregnant and I already have a 3 year old I currently do not work.. she has a genetic condition so she she’s still in diapers. The money I have is for me to eat and for diapers if I ran out. He is just honestly get on my nerves asking me for money every other day, I’m feeling used and ready to go off on him cause it’s becoming tooooo much plus some of the money I gave him he asked to borrow and said he would give back yesterday then to come asking for more last night and today is insane

(I know punctuation is off and some spelling but I’m typing fast because I’m so irritated by him rn and just needed to vent)

EDIT- I asked him where is his money since he just got paid yesterday and his excuse is he’s tryna stretch it to get our baby stuff and for his 2 other children .. so like I’m supposed to go broke and spend all my money so that you can “save” 🙄🙄