That timeline doesn't make sense!

Is anybody elses pregnancy going by like super fast? Like I keep seeing posts about people who are due in like August and September and I'm like "how do you even know you're pregnant?! Like I'm dues in May and I'm not even very far along! " and then I realize I'm 26 weeks and I'm like "oh shit nevermind! " lol this pregnancy is flying by so freaking fast but my first felt like I was pregnant for 2 years!!