Life is passing me by. Running out of time.

I am a 28 year old female, I am a pre nursing student and trying to save up to buy a house tho I do live paycheck to paycheck. I have a 3 year old son, who I enjoy spending my days with of course. But I see everyone around me buying their own homes girls younger than me 22 buying their own houses. I see all my friends getting engaged and alot of friends are getting pregnant. I cant help but be jealous of them because I am having baby fever like crazy, but I am single and no guys are interested in me. The guy I did like doesn't want to date 🤷‍♀️. And recently my ex got into a new relationship and I cant help but be jealous. It just seems everyone is living their Iives while me and my son are stuck living with my parents while everyone is having more babies and im single wishing for another baby and wishing I was happily in a relationship. November will be my 3 years being single. I've tried everything from dating apps and no luck. I almost 29 so my time is running out for another baby. I heard at 30 fertility declines fast. Sorry I just need to vent and rant I guess amd get the jealousy off of my chest i guess. 😪