maybe im crazy? maybe its the hormones?

Well I need some advice or input or tell me I'm not crazy!

I found out I was pregnant at 4 weeks n 4 days. I'm now 6 weeks. When I found out SO was happy n then after celebrating he starts asking me all these questions that I'm TRYING to answer going off my last period! Those questions really hurt it felt like he doesn't believe me that this baby is his. At the first ultrasound I thought I was 7-8 weeks till she found a little circle n messaured n that's when we found out I was only 4 weeks n 4 days. After the appointment. He once again grilled me with the questions. This time it was so u lied to me. So ur not 7-8 weeks. N it hurt bc I wasn't worried about that. I was worried about is there gonna be something that's a sign of a baby that everything is going great. All I'm thinking to my self is please baby stick please! So Monday comes n the 2nd ultrasound is on that day. So I'm all excited I have a strong feeling. My pregnancy test came back STRONGER then before! N SO is like blah.... So we go we get there n we see a GROWING sac! Messauring at 5 weeks n 4 days, due date Nov 1st. A HUGE sign of relief! After the tech left so I can get my pants back on. SO brings out he's phone and starts looking at the calendar n seeing when I got Pregnant what week what day! Then asked me did we have sex during this week! I was so beyond pissed! (Is that wrong of me) so days go by! And today I go to the dollar store and I find there adorable soccer butties! And bc SO LOVES soccer I had to get them! I'm standing in line with this big ass smile on my face. Looking like an idiot lol! But I get home and I went to show him n the guy from upstairs came down n started talking so I was like ok that's ok I'll wait till he leaves! So he leaves n I asked SO if he saw what I got. N he said no. So I go get them n show them. He was on his phone not giving a shit. He said "oh yah I saw." I thought he would be all happy n bubbly on the inside and outside like I was! He's been telling me for the past year on how bad he wants a baby together! N now it's like he's doesn't give a f**k! And then I'm putting all the effort in for his mom n sister who dislike me, to tell them that I'm pregnant. I had this great idea for his mom. He really had no idea what I was talking about bc he was so into his phone!

Plz tell me what is going on!

He tells me he wants the baby n he's happy. But he's not acting like it! This isn't my first baby! The last baby daddy was so excited n I was only 18 n my ex was 22 n I'm now 22 n my SO is 28! At 22 year old was more excited then a 28 year old! Smh! Plz any input would be amazing!