advice if possible

Kelvin
Hi people , my partner has many diseases including chrones and IBS among the worst...
We had surgery two years ago which removed large part of infected intestine... 
Short of it is we are trying to conceive have been tryingnearly a year... we haven't been religious with the cycle but actively trying.... our previous Child (Dylan) happened almost instantly... is it a case of EE are older..(4 years later) diseases affecting... me... stress... anyone else having similar 'problems' or 'issues' ... haven't been to doctors to get checked yet... is that next step or keep trying???