I'm 8 dpo, this was the first round of artificial insemination. I've been eating more, feeling bloated, boobs feel bigger. Having cramps here an there. I checked my cervix and it still kinda high an still have mucus and my period is expected in five days. I took a test but it negative. Could it be that I haven't implanted yet or just not enough hormones or no pregnancy at all. Any thoughts?