Could it be???

We have been TTC for 11 months after our second miscarriage. Last week I start to notice my boobs aching and my nipples are ridiculously sore. I'm not due my period until next Wednesday (sore boobs and nips aren't ever something I experience before my period) but being a very impatient person I could help but do a test, well two actually... it's come back on both with very faint positive signs. So really the question is how many people have experienced this and actually had a positive?? Or am I just seeing what I want to see? My husband is 70% certain he sees the faint lines too xx