First time Mum here! My little man is 12 weeks old today and he cries all the time apart from when he is on my lap. I can't put him down for more than 5 mins without the wailing starting! I'll also get him to sleep and put him down for a nap and he wakes up after a couple of minutes. I can't get ANYTHING done at the moment! I'm self employed and am having to work in the evenings and weekends to get stuff done. He's absolutely fine when my fiance is home in the evening. My mum and mother in law said to let him cry but I feel awful doing this. Any other ideas or suggestions?
P.s. I've tried putting him in his swing, pram, on the sofa, in his nest, he will only nap on me