Advice? Appointment booked but still unsure

Found out a few days ago that I’m pregnant. It has been a huge shock, not planned at all - husband has a vasectomy booked.

We already have kids (3,6,12) and weren’t planning any more.

Life is how we wanted it, able to go on holidays and treat the kids/ourselves and this baby would make that more difficult (not impossible by any means)

I’ve been in two mins since we found out and I just don’t know if I can abort but also not sure I see another baby in our lives. Husband has been great about giving me space to think things through but honestly I still feel pressured to abort because I know that’s what he wants.

Honestly I’m not sure how to move forward, if I keep the baby I’m forcing him to have another child, change all our future plans etc etc but if I go through with the abortion then how do I move forward?

I currently don’t want sex as I’m finding all of this exhausting and stressful but he still does and has tried a few times to initiate things and I just don’t think he understands what’s happening inside my head.

I think our relationship will survive either way but how can we move forward without resentment when I feel like both situations we are losing?

Think this was more offloading than any actual question but if anyone has any advice I’d really appreciate it. My appointment is in just over a week.