I give up

my boobs feel super full and hard my nipples are sore. I'm a teacher and my students are working my nerves, I'm typically a very patient person. very light cramps off and on. except on 9 dpo I had extremely sharp pains at like 12 or 1 am and woke me up. I tossed and turned for a good 30 mins before they went away. my cm started to dry up yesterday. I was constipated for 3 days (dpo 6-8) and now I have runny BM (tmi) nausea very very slightly off and on. heartburn even with medicine. tired (prolly bc I'm a teacher) I dont know what to do. I usually only pee twice a day but now I'm going a minimum of 5 a day.

I'm 11 dpo, starting at a BFN and crying. 2.5 years ttc and nothing. not even 5 months of clomid. to top it off my sister just told me she is pregnant I want to throw up....I quit