Someone help me 😪

Ok so my SO & I have been ttc for a couple of months but lately he doesn't even try anymore! We haven't had sex in 4 days 😞 he wants a kid but he's just scared that I'm not going to be able to educate him or her! Back then when we weren't trying we would have sex every single day sometimes even 2 times a day, now we go days without even touching each other 😭😞 he has a kid of his own so he's not like obsessed with having a baby like me 😞 I've tried talking to him & he says he's going to change but nothing