Haven’t heard from him in 3 days, not interested ?

I’ve been seeing this guy for about a month now, and honestly I don’t think I’ve been this happy about dating someone in a looong time. He’s been superrr sweet and affectionate (I have tons of pet names 🤗) haha and we’ve been enjoying our time together... he would always text me good morning and goodnight, everyday.... we would text here and there thru the day but his job doesn’t allow for him checking his phone often because of the physical nature of it, and I don’t mind that because I’m busy during the day as well... but fast forward to friday evening, asks if I’m still up to hanging out on sat and I say yes... then I don’t hear from him till Saturday morning (he usually does tale a couple hours to reply, but this was a bit unusual) saying that he staying by his buddy up north to help him with some projects (he does work up north as well) and that he hopes to be home by the evening... then later that evening he says that he’ll be there again because they’re gonna work again tomorrow, and that we can try to hang out later this week..I appreciated him touching base with me, he probably doesn’t owe me that idk... so I didn’t think too much of it. He did talk to me on Sunday night a bit asking about my day... I replied like 2 mins after and since then nothing.. I did ask him about his day, got no response to that.. no good morning text nothing..maybe I was being spoiled haha but it almost feels abnormal ... I’m thinking something could have happened to his phone ? I noticed when we hang out he’s never checking his phone, he’s not really on his phone like that at all... or maybe something happened to him, his job is pretty dangerous (arborist) so I’m a bit worried... or maybe he’s not interested anymore? Idk my mind is kind of racing... to top it all off I just found I’m pregnant on Sunday soo 😅 I’m not sure if this is just hormones but It’s really bad timing. And I haven’t had a chance to say anything yet...

Any advice ?