Advice is much needed!

Leanne
Hi ladies okay here's the deal. My husband and I baby dance on my highest day of fertility and we also use pre-seed. Since then we only baby danced maybe two or three times but that was out of my ovulation window. I have been having some symptoms such as really sore breasts, cramping, and just today I have been extremely nauseous. I don't want to look too much into this do to us miscarrying back in June which completely devastated us but I did not have any symptoms at all knowing that I was pregnant besides a missed period. I'm not due for my period for another 7 days. Any ideas of what could possibly be going on? Pregnancy? Did anybody else have these a week before their period was due? Thanks