Help. TTC

Hi all. My husband and I have been TTC for a couple months. My last period(June 23) was very strange. I had brown spotting when wiping for a full week before a very very light period. That was already strange and out of the norm for me. Then during my fertile window (Week of July 8-11 about) we TTC, and about a week after my breasts began to feel tender and sore, my breast soreness is still going on. Especially at the end of the day when I take my bra off and they hurt so bad. My husband said they look bigger.💁🏼‍♀️ now I was supposed to be due for my period on Sunday, July 27th. Nothing yet. I felt mild cramping so I put in a light tampon, and only had very light brown spotting. Could it be pregnancy symptoms? Or can it just be some strange period/pmsing? Was planning on getting a test this weekend once I’m 5 days late. Any advice, I appreciate it!

P.S. my usual period is heavy day one with cramping, and then gets lighter for about 4 days. Never experienced spotting beforehand. Normally a week before I’m due my breasts hurt for a day or 2 with a headache.