Please tell me im not going crazy!?

I ovulated in the first week of january. I had sex before during and after ovulation.

Its been just a little over the two weeks and ive had the following symptoms:

Bloating - serious little pot belly out of no where

Swollen/tender/tingling/heavy breasts

Nipple discharge - clear

More vaginal discharge - clear/white

Lower back aches every now and then

Stomach cramps - like period cramps, dont last long

Acne - i never get spots

Started feeling tired even after a good nights sleep just want to nap through the day - not like me at all

Went off some things i absolutely love - like pop but dont know if this is psychological

Nausea - again dont know if this is psychological

These symptoms started way before my period was due also

Im now 2 days late. Ive took a few tests some looked as though they had very faint lines on others were BFNs.

Am i going crazy or could i be pregnant. Im not desperate to conceive so its not as though im trying to convince myself im pregnant.

Whats going on!