Need some advice

I had a c section 2yrs ago due to preeclampsia and I’m now 33 weeks pregnant with my second baby. Baby is doing great this time around but my question is that having a c section 2 yrs almost 3 yrs my doctor didn’t say anything or raised concerns of any type but other friends and family keep telling me I won’t be able to have a normal delivery due to a csection that was done couple yrs ago because my scar will open up and cause serious problems when pushing out the baby. Please anyone out there with successfully and positive thoughts. I have no worry because number one God is in control and if my doctor wasn’t concerned at all. Then why people keep telling me this things. Please I want to hear some stories from you thank you