spotting??

brook
is there a time through or at the beginning of pregnancy i should expect spotting? my SO and i have been ttc for 4 months and i'm feeling this is definitely the month. i'm 2 days late as of today and going to test on valentine's day that way when we see the BFP it's the best valentine's day ever!! (hopefully) 
also what's the best test you guys trust?? i sometimes get upset when i see a negative blaming the brand and want to make sure i get a good one this month. 
any coments are much appreciated!! many blessings❤
-xoxo brook