I need your advise/ help please.

I am 29 and my husband is 31. We have been married for 5 years.
I know that’s its more common than usual for a man to be aroused and to be able to reach his peak and ejaculate very quickly.
My husband, on the other hand takes a very long time to ejaculate. He can get excited but will just take a long time to ‘come’.

When we are having sex he will be very excited and I can try all sorts of different things and positions to try and help my husband reach his peak so he can ejaculate. After a very long time I will be exhausted and then he will continue masturbating and he will be able to ‘come’ on his own.

Also while having sex after some time he will tell me that my vigina has grown so big and that he doesn’t feel anything and there is no excitement, no feeling.

Is it that he is too used to his hand that he doesn’t get any enjoyment from me and cannot ‘come’ in me?

I want to have a child now and it affects me that he is not able to be excited enough/ or is it that I am not able to excite him enough for him to reach his peak.

I don’t know what to do, but just feel more and more desperate to have a child and get more depressed that my husband is not able to ejaculate in me.

Please help