Would I be TA if I don’t tell my husband how much money my parents is sending us for the new baby?(kinda long)

So for context, in nov 2023, we had our first child. Both of our parents came up to visit us(not really important). Before giving birth/getting pregnant for that matter, I was making close to $60k. After giving birth, I was out of work for 5 months and when I went back, I had shortened hours. No problem, I understand that comes with the territory. We live no where near family and at first we did have 1 person we trusted to watch our son now we have no one. We work opposite schedules so our son is with either one of us all day. My husband still has all his hours plus some and a promotion now making around $78,000/y. I don’t know how much he gets in his checks and I don’t ask bc as long as the bills are paid, that’s all that matters to me. My thing is, last year I only made $27k and it was hard not having my own money because mine went straight to the bills. Now they’re split 70/30ish and he covers 20% of what I used to put in. I don’t like always having to ask him for a little extra money to get this or get that. He doesn’t mind and sends me the money right away if he has it. And now with a new baby, I’ll make even less. My parents are sending us $1000 and ofc we’re going to use it for whatever needs we have and save the rest but part of me wants to keep $500 to myself. I’m not going to just spend it on whatever, I’m most likely going to use it to get ahead in bills but if I tell him the full amount, I feel like he’d be looser with the money. As we’re barely getting by now because of impulsive buys. Like I said bills are getting paid, but I feel like we’re barely making it bc he has extra money and on my end I’m putting dang near my whole check into the bill account.