abortion?

Racheal
(Sorry for the long entry)
Hey ladies, so I'm just here to hopefully to get some insight on other ladies that might have been in my situation. I'm a 29 yr old student mother of 3 wonderful kids. My husband and I don't want anymore children so I went in to my dr office to sign consents for sterilization and I found out that I'm pregnant😰 in a point in time when most women are over joyed that they'll have a new bundle of joy in the next 7-8 months I catch my self feeing disappointed and scared. I'm in school and was going to enroll in a nursing program after the summer. Mind u, my husband is the only one working and if I decide to have this baby I have absolutely no one to watch it while I'm in school. I'm so torn! I feel like it wouldn't be fair to children I already have to bring another in to this situation ( we are getting by ok but another baby would definitely be pushing us over the max). I am pro choice I believe what a woman does with her body is definitely and undeniably her choice but never thought that, abortion would be a choice for me, personally. With all these things in mind (school, extra kid, the kids I already have, no extra income, no support to finish school if I do decide to have it) i found myself choosing to terminate (I'm currently 6 weeks and 4 days give it take) I made my appointment and that if for this morning and I woke up to get ready and get my 3 kids ready and I started to freak out about my decision! I stared crying hysterically while trying to be quiet so my kids won't here me. I have no idea if I'm going to be able to do it while these past days I have set in my decision I am now so confused!! I jus need someone to talk to that's been in my situation. 
Update:
I was in the waiting room for them to call my to go in for an ultrasound to see if a qualify for the pill and I started to get emotional went to the bathroom to gather myself and decided to walk out of the clinic.