I feel your angst. I too wanted children, many children...6 sounded good. Bit of my own Brady bunch. My mother was not supportive in the idea, she also had the fear I would end up on welfare and back at her house expecting her to watch kid so I could work. Thankfully I did not get pregnant at 16, 17 or 18. But at age 24. Which in retrospect was way too early. Mostly because I do not think I was emotionally ready, I had no idea how demanding a child would be.
I have to say it sounds like you may be going about this a little backwards. I presume you have a job, and savings, because once the baby is born you will not be working unless you have a work at home job. Babies cost a lot of money, diapers alone almost broke me. Stable housing is a must and one should have that in place before getting pregnant. Your parents should not have to help you find a place, and by help I presume you mean financially. If you are not financially sound before you go into this you will be spending much of your time trying to make ends meet, and that is a struggle that is not fun. I remember having to give the babysitter nearly my whole paycheck and not to mention I was missing the subtle changes my daughter was undergoing on a daily basis. That alone distressed me the most, I was missing my child growing up. I eventually quit, but it made the tight ends even tighter, however I was fortunate to have a partner that was willing to work while I raised child. We didn't eat high on the hog or live in the best part of town, but we did it without help. Frankly I marvel at anyone who is a single parent, yet they are frequently exhausted and feel there is no time for themselves...and they are right. One looses a bit of their identity when child comes along.
I really don't understand how a car with water on the floorboard plays into this.
But I would suggest doing some serious meditations on this and several tarot readings in regards to foresight. Any spells that would need casting may be along the lines of financial stability, housing, and strength. Once this is in place, then consider child.
Blessings in your quest, Firebird
Ps...I only had one child, after the first which was a difficult pregnancy that ended in an emergency C-section, I gave up on 5 more.