5th c-section w/a lot of scar tissue

So I’m 36wks 6days my little man is almost 8lbs....yesterday I got news about my surgery that since I have sooo much scar tissue I’ll be getting cut vertically right above my bellybutton....Also was informed that if my placenta don’t detach I’ll have to get a hysterectomy 😩 when I say I’m scared as hell I mean just that because I’ve only had bikini cuts! I got so scared I started having contractions! My doctor said if I get too uncomfortable or start hurting worse go on to labor & delivery, which then at that point they will keep me.... I’m so nervous about the whole thing I can vomit thinking about it.... I pray I have the strength to show up at all!