hmmm too early!

[sarahx500]

Hi every1
i have 2 boys 9 and 12 yrs old and im TTC my nexy baby... my last perod was 18th may so i shud be ovulating between 29th may and 3rd june or so i was told .. is this correct...?
also we've been doin tha BD on 27th,30th and 31st may..... wot wud my chances be??
wen wud be the best time to do a test??

cheers every1