Been on birth control pills for 3 month. I was observant on the first month of starting birth control pills but the other two months I missed a few pills. So this current month I have not on birth control pills meaning I have not used them this month. Now my issue is that after my period this month that was between 2nd january 2020 and 5th january 2020 I have been having mild cramps if I can recall from the 11th this month and on 14th this same month I spotted on that day like the whole day and that was all and since then I have been cramping, bloating, gas, mild headaches, backaches,mood swings, dizzy spells, lots of saliva and bitter taste in my month. My cramps were to start on 26th january 2020 but I did not receive them and now am 10 days late. I took a pregnancy test on 27th, 28 the and 4th february 2020 and all were negative though I used the urine pregnancy test strips. What could be the issue. Thanks in advance.