Does anyone know whats going on?

Period on 15th-20th, spotting on 21st and 22nd. EWCM on the 23rd-26th, watery cm on the 27th, EWCM on the 28th-1st, creamy lotion like cm from the 2nd-5th, EWCM on the 6th-Today. Had sex on 21st-25th, 27th, 6th, 8th and 9th. Had cramping from the 21st-today(dull aches not majour), sore boons started on the 7th, nausea started on the 8th. Had a weird dream the past few days(exact same dream) about me being pregnant with twins. I took a test on the 8th and it was a negative bjt went to positive after 24 hours and after taking it apart so took it as invalid, took a test again today(Clearblue weeks indicator) and it said negative although i read a lot of bad reviews about that test. I've had constant headaches, nausea(puked once), sore nipples, my nipples and areula are way darker than normal, dull aches in both ovaries, back pain, cravings. We are trying for a baby but im just a little confused on what my bodys doing. Does anyone know or can help?