My guess is if u took 4 test and all 4 were negative then u are not pregnant.
Seems like you have a ton of stress. Especially with your husband leaving for Iraq.
If i was you, for peace of mind, go to the doctor and have them test u just to be sure. But, I am betting it is stress related/getting of the pill.
I would guess that it is due to coming off b/c AND the stress of now possibly being pregnant. You would be getting a positive result by now if you were pregnant.
When I came off bc I was 5 weeks late with all the signs of pregnancy because I was so stressed wondering if I was pregnant. It only took me three months off bc to get pregnant soooo if you aren't looking to get pregnant you may want to get on another form ASAP.
you dont say exact date you came off bc this could be the cause of it but my guess is stress i was threee weeks late and did two tsts but all neg i saw my doctor and he said it was due to stress over the x mas period nad my kids were also sick. try and rest you have alot going on with the weeding and your husband leaving aswell im sure they will come soon if not try get that appointment for the doctor