Am i wrong ? Am i just being hormonal ?

So kinda long but i need to vent. This is my first pregnancy and it was VERY planned. Im 25, been married for 4 years, planned this with my husband, had my IUD removed, i tracked ovulation, and got pregnant pretty quick. Like i said this was VERY planned. My sister in law keeps making comments like “oh i wanna how youre gonna do laundry with all that baby clothes” and like makes a joke and laughs about it because usually my husband pays for them to do the laundry i dont go and do it. She’ll be like “i wanna see you actually deal with a screaming baby alll night.” My mother in law mentioned to my sister in law that she would help her clean because her house was sorta messy and my sister in law goes “ my house? You should see hers, and imagine with the baby!” “Oh you really think your mom is gonna come help you? People stay for 2-3 days then leave” And like okay i get the comments, i was 20 years old and her brother was 19 when we decided to get married, the first year or so things were a mess, not that its any of her business but yeah messy house, forgotten laundry, disorganization, hey it was hard getting adjusted to being a wife but now 4 years later things are fine. Last night i had enough of it, she made a comment of how like it sucks her poor brother is gonna work all day and come home and stay up all night with the baby. Now im not planning on working after the baby, and im latina, the way i personally was raised was in a village, aunts grandma the whole family, and my mom stayed up with all 3 of her kids for the most part night because my dad worked hard labor everyday to support all of us and she was a stay at home mom. So i have spoken to my husband about it, and i wanted to be a stay at home mom, i asked for it. I asked to be the one to get up at 3am without worry of work, like i said CERY planned baby, i know im in for diapers and crying, and lots of laundry and mess, i know its hard but i also waited until i felt ready and like i could handle it. So i said outloud to her dont worry ill be the one getting up while your brother sleeps. And she started laughing and was like yeah okayy i wanna see that actually happen. And i got mad and i was like i dont understand why thats a joke ? Im not gonna be working at all if the baby wakes up at 3am crying and i dont have to work the next day why whould I not be the one to get up. My mom raised 3 kids being the one to get up and take care of us bc my dad woke up everyday at 5am to go work. And she said you dont know that you werent there. And i was like i do know because both my parents say it, my mom thanks my dad for allllowing her to be the stay at home mom she wanted and my dad thanks her for having the patience to get up every night for her 3 kids without ever complaining. And she was like well its just a joke and i cut her off and i told her i dont understand whats the joke i dont like it. At this point my husband was trying to diffuse the situation and her last comment all i heard was “well my life wasnt so easy like some peoples”. That pisses me off too bc she always says like since i am latina i was raised “too differently” i believe in different things, my life was easy bc my father was stable financially, i went to private school my mom didnt work so i was spoiled. I guess i just like didnt like the comments anymore, i dont like that shes implying that im useless or incapable of taking care of the baby. Like the baby isnt even here and yes OBVIOUSLY im stressed and worry about stuff and i dont need her negativity, i need support and positivity. So i guess im asking like am i wrong for snapping at her ? Am i just acting up bc my crazy pregnancy hormones ?