no timer an ive forgotten the lights help

ok here is the problem so i havent got my self a timer yet an i think its huring me. so i have a couple of questions . 1 some of my plants are behind others by several weeks is it still ok to flush all of them when some of them are not ready 2ndly. ive been flowering for 6weeks an 1 of them just started showing sex a week an a half ago an since then has exploded , granted i have stressed the hell out of these things for various reason forgetting the lights, too much food, heat, an i even had to move the whole thing system plants an all.. im using an areoflo2 an im telling you this thing works wonders there no way that i could damage these girls this much close to dieing even an they keep coming back its all unbelieveable but true .. an if you could tell by now im a first time gower but how long do you think it will take to finish? oh! an i have twin plant which i hear is rare but the mutant is doing very well but the mutant an the girls that just showed there sex are probably sativa yea? well let me know what you think

Timer cost like 10 bucks,you should get 1 before you start your new grow, you probably are behind schedule,but just check your trichomes,pick one strain to grow because it will be easier to harvest all at once.Too late now.When to flush is entirely up to you since some are behind you could wait till those are almost done to flush but it's all up to you.Sativas typically take longer to flower.