Cervix in early pregnancy?

Goodmorning ladies! I am 12-13 dpo and was wondering if you could help me out with something! Since 3 dpo I ve had mild cramping (prob left from O) but around 5-6 dpo I had horrible cramps lasting about 3 hours in my lower uterus and also over both ovaries. Bad enough for a heating pad but I am some what of a whimp! at 8 dpo I had some increase in smell and nausea that comes and goes still. My boobs usually are sore 4 days or so before af, but this time they have only been sore under my armpits on the sides and my nipples are very very sensitive which doesnt ever happen to me.That has been happening since about 7 dpo constantly! I have had vivid dreams everynight, also woken up nightly by hot flashes which I never get. I also have to pee every hour at least. My appatite has increase since about 9 dpo as well.Since about 10 dpo, I have had the wateriest wettest cm I have ever had! I kept feeling as if AF was here I even wore a pad just in case. I have been having mild/subtle af cramps a few times each day for about a week now. I have only checked my cervix 2 times since O. At 9 dpo it was high and extremely mushy and it felt like there was no room in there . TMI sorry! But this morning 12-13 dpo My cervix is low-medium, but exteremly HARD and TIGHTLY CLOSED. Please let me know what you guys think as I am nervous.