why does people all way gotta say that a pregnancy is always the same no matter how many children you have when it not…

why does people all way gotta say that a pregnancy is always the same no matter how many children you have when it not the same I done told my step dad that the weeks go by alot quicker and the contractions and etc come alot quicker and sooner with your second child even my doc said so and he keeps saying bs that the doc dont know what he talking about that every pregnancy is the same that the weeks don't speed up that every pregnancy go by the same way and time then I tell him that the doc said that I'm at a low low risk of delivering natural that it would be best to have c section again he gets pist and says that the doc dont know what he talking about that I still can have a natural birth but my doc done said he don't wanna risk it especially since with my first baby I never dilated my water never broke I stayed only 80% thinned out my cervix stayed closed and the potocin was to strong for me and my child went threw stress do to when i had contractions the imbilical cord tightening around his neck and chocking him and our heart rates dropped my blood pressure was unstable they constantly was putting the oxegyn mask on me just so the baby could get enough oxygen to be able to breath my son came out dark blue and purple I literally got told that if I waited any longer that me or my first child would die i was lucky that we both made it but no he don't understand that he says that it's not going to happen again that the docs are only saying that because that's what they want their not even given me a chance to even see what's going to happen then I tell him that I only have 9 weeks & 6 days until my second child is born and he still saying that I have plenty of time to wait and I keep telling him that no I dont because every wends. makes a new week that I'll be 8 months in two weeks and the weeks are going by fast he gets mad and says they're going fast cause you think they are its just u wanting it to go by quicker i even asked him when we was going to get my second childs stuff and I'm still getting told that I have plenty of time I can't even get my bags ready for the hospital because I don't have a bag to use I have the car seat and most of the important stuff like clothes and etc but no wipes no diapers no bottles well I have bottles but no nipples or caps to them no pasifiers no socks no mittens no gawls for his surcomsision none of that stuff and I got the money but he won't let me get it myself he tells me to stop being impatient and to stop worrying I feel like he is waiting until the last minute when it will end up being to late to get it