Hi O.,
I don't know why you had a c-section the first time around, but the only reason why I had one was because I needed an emergency c-section because my baby's umbilical cord was wrapped around the baby's body and my baby was losing oxygen.
If it wasn't for the emergency c-section I would not have needed a c-section at all, so because of this when I got pregnant with my 2nd pregnancy I knew that unless I had another emergency, that I would deliver vaginally just like I had planned to with my first pregnancy.
I didn't do any research or look anything up because the doctor told me it was safe since my scar was low and horizontal. I had no problems in my 2nd pregnancy and was able to deliver vaginally just fine, just like I would have if they hadn't have had to do an emergency c-section the first time around.
So if you had an emergency c-section due to some fluke thing that happened, like in my case, then I would say go for the VBAC no problem it's a no-brainer. But if you had a planned or scheduled c-section then I would say you probably need to check it out since there was probably a good reason for scheduling the c-section and whatever that reason was might be a reoccuring problem forcing you to undergo future c-sections, no matter how you plan to give birth.
Unless your scar is vertical you really have nothing to be afraid of having a VBAC. Lower horizontal scars pose very little risk of rupturing or causing any other problems during a vaginal delivery.
I will continue to have VBACs with my future pregnancies unless of course I have another fluke thing that causes me to undergo another emergency c-section. But I doubt that will happen.
Good luck and don't be scared to have a VBAC. I know what it is like to heal from a c-section and a vaginal birth and let me tell you it is way easier and faster to heal from a vaginal birth than a c-section and if there is any possible way to avoid having another c-section again I would do it. I was in complete misery and pain for atleast 6 weeks after my c-section and it got infected and was very painful. However, my vaginal recovery was quick, within 2 weeks, and had little pain even though I underwent an hour long stitching of my vagina from massive tearing. It still wasn't very painful compared to the c-section and only took a couple of weeks to heal.
I would choose vaginal birth over any kind of c-section anyday if you have a choice and your baby and you will be safe.
Good Luck!