TTC for 3 years & we’re wanting to give up.

Hey ya’ll.

I am due af today, the past 4/5 ish days I’ve been getting nauseous in the late evenings/nighttime, my boobs started aching a week before af due (usually ache 2/3 days before period anyway), I’m constipated, super annoyed at my husband for just breathing (again, I get moody before af tho), we gave up trying since last month because 3 years with no success and it just breaks our hearts but we continued to have unprotected sex because we do want a baby. I’ve just been to the toilet and this was in my underwear. I’m past ovulation although I didn’t track it this month due to our feelings but can you get this type of mucus/discharge before af or could this be pregnancy related? Am I just getting my hopes up? As strange as it sounds, I feel like I could be 🤷‍♀️🤦‍♀️