Qualitive blood tests????????

Ok. This is my first month on clomid and im pretty sure I ovulated on day 15 or 16. Today is day 27.. So 12-13dpo and I got a little ansy and went and got a QUALITIVE blood test... And it was negative and very heartbreaking. I have been TTC for 22 months and this is the first time I have shed a tear. I think because it is so heartbreaking because I thought I accually had a chance with the medication this month. But anyways, has anyone got a negative qualitive blood test before your missed period and then end up being pregnant that same month. Im grasping straws here, i know. But im trying to stay positive. My husband doesnt think I should give up hope until AF arrives... But it hard to have faith in anything anymore.