I really need your opinion, 5 days late AF, 2 days light bleeding, abdominal/rectal pressure,mild cramping,abdominal/thigh/lower back is sore,all the pregnancy symptoms/mood swings

[debgunn23]

Ok well i thought i could be pregnant. 2 days beofre my period was due i had nausea 3 times a day, headaches everyday, im very fatigue, i take 2 naps a day, and mild cramping. Well i didnt start on the 23 when i was suppose to. I started bleeding on the 29 light like a light period (no spotting heavier than that) there was small clots one the size of  a dime or so, wh cramping and it was red. It only lasted 2 days. Im done bleeding and its the 31st. both days were light. I normally have 3 days REALLY heavy and 2 days light. Now that im done bleeding i experience pressure from my abdomin (abdomen) to my rectal area, when i push to go to the bathroom it feels sore and pressure like. Im getting twinges of sharp not intense pains here and there with certain movement especially when i brought my knees to my chest last night to see if it would hurt. My lower back has a dull ache and my upper thighs feels sore as well as my abdomin (abdomen). Im having mood swings too. You would htink im preggo but i tested this morning and it was neg. Is this a cyst? Should i go to the ER? i dont have insurance so would like to avoid it. I really am nervous. I know something is wrong i can feel it. I had a baby 6 months ago, if that makes a difference. Oh i had an ectopic 2years ago and lost part of my right tube, no severe or sharp pain or anything but same pressure feeling.