I need some mama knowledge!!

I am currently 2 days until my period. I ovulated on the 27th of June. My partner and I did the BD the two days before on the 25th and 26th. Around 4DPO I started getting breast pain. (I assumed it was me PMSing and just moved on). Around 6-8DPO I started getting evening heartburn to the point I felt like I was going to throw up and almost did a few times. Around 10DPO the I was experiencing heartburn all day long. This is really unusual for me because I don’t get heartburn even with my period. I haven’t had any other symptoms other than the breast pain (so painful and sensitive) TMI my nips hurt too and the heartburn. Could this be a sign of pregnancy?! I have tested the last two days and both were BFN (I know it’s to early but a girl can hope right). I may just be being hopeful because I had a miscarriage in December of 2019 and haven’t gotten pregnant since. Just want a little insight or opinions on what some other ladies might think or if anyone else has experienced this?