I unplugged my I mac to move it to another room and now it doesnt turn on help pleaseeee

Which Mac is it exactly?

Might be time to replace the PRAM Battery, 4 years is close to their lifespan, far less if ever without AC power, & can cause strange startup problems.

Assuming it's a plugged in together with any switches flicked to 'on' you could try and SMC reset:

https://support.apple.com/kb/ht3964

Check another device in the plug socket just to make sure that works, and to rule it out as being the problem.