when can i start testing!!!

Alicia

so my husband n i have been trying for 3 yrs and im hoping for a bfp... my boobs r swelled, lite cramps, and back is sore... i have 2 boys and 2014 i had a my son kyler that gained his wings at 24 weeks pregnant.... i want a girl so bad but a boy will do... when do u think i cn start testing!?!?!