I’m overwhelmed with recent events and i don’t know how to cope

So, my period was supposed to start on Friday. Saturday comes and my period doesn’t. All day long I’m trying to figure out in my head how I’m going to tell my boyfriend. Saturday night comes and I still don’t have my period and we are sitting on the porch and he asks me what’s us wrong. So I tell him that my period was supposed to come yesterday and it still hasn’t. Now when i tell him the look in his eyes the smile on his face i can tell that he’s actually excited that the chance of it not coming is going to be great. Sunday rolls around still no period but i take a test and it says negative. So i figure that’s okay maybe just maybe it’s way to early to tell. Monday comes and all day long i don’t have a period still. I get home from work and i go to shower and boom i have started. At this point i have put it in my mind that i was finally okay with me possibly being pregnant and that is what i wanted. Now it’s Tuesday and i can’t stop crying i have never had a missed period in my life it has always came at the time that my app said it would. I do not know how to cope with this for some reason because deep down i want a baby and so does my boyfriend. We haven’t been ttc but we haven’t been trying to prevent it either by any means. I have never been so sad in my life about something like this. I’ve always been the type of person that will be okay with it when the time comes but i really do not know how to deal. This really hurts me right now and i know I’ll get over it because it’s just not my time i guess but there’s nothing i wanted more than my period not to have came. I don’t really know who to talk to about it because he just said either way babe we are going to be fine and all of my friends have kids and have never experienced this they all were pregnant when they missed.