Confused

Elizabeth • Elizabeth, 26. TTC baby #1 for 5 years now. Two losses, 11.30.11 @ 7 weeks, and 11.28.12 @ 16 weeks.
Negative test this morning, was definitely feeling out. Have had on/off cramps today, but partly due to constipation lol. After lunch/dinner (hospital sandwich & salad) I had a touch of heartburn. Lots of creamy/milky CM. And for the past hour I've got a qeasy/nauseous feeling, nothing over the top, but it's there. 
Really hoping I'm not out, but not testing again unless AF is late- due 6/4.