So I think I'm experiencing chemical pregnancy. I got a faint positive on first response this morning and started what looks like my normal period couple of hours later, but with more cramps. I just took a Superdrug test and it is negative. Is that not to quick? Dh could see todays line but not the super faint line I saw on friday. Did I get a false positive on first response (friday test came in the same packing as this moring one) or is it a chemical? Also if it is chemical is there anything I need to?