ovulation testing please help advice desperatly needed

hi girls
Im am desperate for some advice, re ovulation testing.

I started testing on saturday and for the first time i got a postive, the line was definatly darker than the test line even hubby said it was so it wasnt just me wishing it to be darker.

I thought id test again the following day and have done since just to see if i was right and it has been the same everyday so 4 days now of positive lh is this normal????????????????

Has anyone had any similar experiences

please let me know of u hv as its driving me mad

Kelly