Question about how much your baby weighed at 31 weeks and opinions on something I am scared to go through again 11 years later during delivery.

How much did your baby weigh at 31 weeks or around 31 weeks? Does anyone know if 31w 3d at 4lbs 10oz is above average?

Here is my concern and back story...

I went to the doctors on Tuesday and they said my belly was measuring a little on the small side and wanted me to do the growth restriction ultrasound. So, I did that on Friday and my baby at 31 weeks and 3 days weighed approximately 4lb 10oz. I know, it isn't exactly accurate but my friend who is almost 2 weeks ahead of me with her pregnancy also just did a ultrasound and her baby weighed 4lbs 3oz. My baby weighs more, so I guess my belly is just smaller then what my doc thinks it should be at. (Probably because of my small stature body.) I looked up growth charts and it seems my baby is on the bigger side? Like a pound more?

Anyways, the reason why I am concerned with having another big baby is, I have a very small stature body and almost 11 years ago when I had my son, he weighed 8lbs 5oz but he was also facing "Sunny Side Up" and I had, VERY VERY bad tearing from the outside, to deep inside me, from delivering him naturally. The tear was SO BAD, that a nurse said, she had worked there for 15 years and never had seen anything like it. Also, she said she didn't want me to be scared to have another baby in the future because it wasn't a normal thing to happen. I had a hematoma down there, it looked like my vagina was a huge, swollen, purple, water balloon!!! No lie, it was BADDD... Honestly, I thought I was permanently going to have a deformed looking vagina after what I had seen. 😝lol... I had to have a lot of stitches going all the way up inside me, and when the swelling went down just a little, 5 days after birth, all my stitches came undone and it looked like a bunch of red jello was coming out of me, (sorry TMI) I ended up having to go into surgery to correct it and had to spend a couple days in the hospital on a morphine drip, away from my newborn son. It took months to recover after that. I also, bought my own catheter and had the doctors put it for me because the pain to urinate was unbearable. I couldn't sit down at all, I couldn't stand, (without extreme throbbing pain) it was VERY VERY painful to do anything. It was not an enjoyable time for me. My first couple months with my son should of been, an amazing bonding experience but instead it was a terrible, traumatic experience. I felt, I got robbed of that time and ill never get it back. I am scared to death, to go through that experience again, like reopening my scar tissue during delivery, especially if I have another 8 pounder. Is that a good possibility of happening? My doctor, did offer a C-section if I wanted, but I told her I wanted to wait until I was around, 35- 37 weeks along to make that decision, based on my babys size at that point. My doctor, did say that the vagina is very forgiving and that she doesn't feel like my scar tissue would easily reopen but I am still very concerned about it happening. I would much rather go through the recovery of a C-section, than what I went through, even though, I know a C-section isn't fun either but I've seen many friends and family members go through C-sections and it didn't seem like it was that terrible for them, compared to what I went through and the time it took to recover.

It's been stressing me out, thinking about what would be the best decision for me, taking the chance of giving birth naturally and risk having to go through that experience again, or to be on the safe side and have a C-section?

Has anyone else, had a very bad tearing that went deep inside in the past, and had another baby, without reopening the scar tissue?

Also, I been wondering, if it wasn't actually the size of my baby and small stature that caused me to tear so bad and if maybe it was the fact that he was facing sunny-side up instead??? Please need opinions.