My cycles are pretty regular (28 days +/- 2days). Feb 4 : my last regular period (29 Days) Feb 22 : The condom broke but he ejaculated outside (CD 19) Mar 4 : I missed my period (CD 29) Mar 6-8 : brown blood spotting and severe cramping (CD31) Mar 10 : Negative pregnancy test (5 days after missed period CD 36) April 3-7 : period can on time but was light April 5- : severe nausea and headache My last period was 2 days late, the blood was brown and it only lasted 3 days. During it I had severe cramps. I thought I might be pregnant so I tested 6 days after my period was due and it came back negative My following period was on time but lighter and brown though it lasted the normal days. I haven't tested yet but I've had bad nausea on and off since. I've been stressed since school started and I don't know if it's the stress, what in the world is going on!?