Feel so jealous

Hi everyone.. I've been ttc for a 2nd for about a year actively but not using anything to prevent for 2 years with no luck. Does anyone else get mega emotional when they come on each month and feel happy but very jealous of others who are pregnant?? Seeing alot of posts complaining about being pregnant in this heat, which I fully understand, but personally when I was pregnant I never moaned because I know that others struggle to get pregnant full stop. Any tips for becoming pregnant would be fab! Started using preseed and trying to have sex every 2 days past my period