am I being rude? Sister in law is pregnant with her third child?

For her first baby my husband and I got her a bunch of stuff in a gift basket, it cost a lot of money. For the second child we did a similar thing. The problem is, she's pregnant again, her last baby is only 5 months old, and she's having another girl (both her children are also girls). Because this is her third child, also a girl, so close to the second one, and my husband and I have a very small income, we have bought her only a couple of small tokens-a birthday bear, gift frame and brush set-they only cost about $20. My mother in law told me that it was incredibly rude of me to do this, and that her daughter will be so upset that we are so tight fisted as to no buy her child anything decent (those were her exact words!). I was furious and told her she was rude and selfish for expecting people to keep buying a ton of baby things that aren't necessary if she keeps having so many children. I know that was rude of me, but do you think I should apologise to MIL given her comments?
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NO!!! dont apologize for anything. Your mother in law is as ruse as ever. who does she think she is? better she go and buy all those things herself since she is so happy that her daughter is popping kids left to right. It is NOT your responsibility to be buying her baby things. she is the one spending time not doing anything but having kids. You are making your whole in-law family think that you and your husband are the RICHEST and SHOULD be spending everything you can. Excuse me! they have no right whatsoever. and you are doing good atleast getting her something. and next time you yell at your mother in law, let her know she should be talking to herself in the mirror about talking to her daughter. and your mother in law should go and buy EVERYTHING since she is so concerened. Dont be sorry honey. it was HER nonsense fault!
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