Dh couldn't get hard?

My dh couldn't get hard... He said it's not me and that he just hasn't felt like himself lately and that he's just working too much and the house is getting to him and money being a little tight right now is bothering him but still it made me feel horrible... 
I work really long hours at a hospital and am 14 weeks pregnant with number 2 so I do what I can but it just never feels like enough. I just feel like I'm losing him plus doesn't help finding porn on his phone.. I just don't know what to think.. Any advice?