April 28 due date..

If anyone here same as mine? if I'm gonna based on my LMP my due date is April 28,2021 and I'm 35 weeks and 6days today.. But in my baby book and based to my OB she's 1 week ahead on count.. for her I'm 36 weeks and 6days.. last Sunday she did IE to me and I'm already 1 to 2cm dilated added some a little blood but I don't feel any worst pain yet.. and now she prescribed me a buscopan coz based on her my cervix was soft and opened already.. I'm so confused and worries if I'm gonna took that buscopan or not yet and wait for 36 weeks atleast