Hi.
Dp and I have been trying for our 2nd baby for a few months.
According to my dates I am due to test tomorrow, but I just had a feeling this morning and tested with a first response. there was a very faint line (which I would think was to be expected for the day before I am supposed to test but could possibly be an evaporation line?). Normally I would wait a few days and test again but it is dp's birthday tomorrow and I think it would be really nice to be able to tell him as an extra little present. I haven't told him I have tested or even that I was going to because I think it would be a nice birthday surprise, although this feels strange because I have always told him in the past.
Anyway, I was wondering if anyone knew if fist response tests are more sensitive than other tests this early? If I tested using a clearblue digital test tomorrow morning is it likely that I would get a positive this early? The sensible side of me is telling me to wait but I have never been very good at waiting 
Thank you.