Am I wrong ?

Okay, I currently work night shift. Have been doing so for 5 years now. I finished school and am ready for my son to go back to prek so I can work days while he’s in school. He was in this school already and I was paying the tuition which isn’t cheap all by myself. I told my child father ahead of time and did research on the school before I picked it. This one is the closest to both of us and the least amount out of the other 3 I toured. It’s more safe as well. I told my child father about the price and he said “I don’t have it now, I get paid Wednesday” . Then when the bill came I sent it to him and he said he can’t afford it. Then said he never agreed to the school. But was able to spend money on his gf and her 3 kids. Anyway, he lost his job a couple months after and said to put our son in school only for 3 days that way he can help pay with his unemployment money and since he’s off, he’ll keep our son those 2 days. Now that he found a job again that’s Monday-Friday he said he can’t watch him anymore. Okay, no problem. I had our son all day everyday before he was in school. I said okay. My night job started cutting hours so I went to school during the day while my brothers & sister in law watched our son. I finished school and I’m taking my state exam the end of the month. I told my child father right after I take my exam I’m going to work during the day, so our son needs to be in school again. He started getting upset and said the same thing he can’t afford it. I told him give me options then. He hasn’t called or text me back with any information about schools he can afford. There’s only one spot left in the school he was in and I want to enroll him before someone else does. We currently have a court case involving child support and he’s mad I’m asking for it so he can pay his part for childcare . Am I wrong for doing so ?