Pregnant senior

Hi guys thank you for the positive feedback on my last post. Like last time, my grammar and punctuation will not be so good. I’m a 17 year old pregnant senior. I’m just 6 months pregnant and I have an adult aunt who has just had a baby. My mom is very disappointed in me, but she’s asked me if I can help my aunt. My aunt for some reason cannot produce very much breast milk. My mom has asked me if I can help me aunt feeding her baby. I’m only 6 months pregnant but I have started producing just a little milk. I’m not sure if it’s even healthy for my aunts baby to be drinking my breast milk. It also makes me quite uncomfortable when my aunt and mom ask me if I can help her. I’m not sure what to do, and I feel selfish if I say no. I don’t know if pumping breast milk this early on will potentially disrupt my flow later on. Sorry if this is weird. Please don’t be mean if you do decide to reply. Thank you