Someone please help me!!

I have had protected sex on the 16th of January and I had protected sex on the 27th which was my ovulation day and partner came in oral form not in the condom I took a test yesterday morning which was the day after my expected period it came up negative It’s been 2 weeks a few days since sex I also took a test 2 days before my expected period and it was negative also. My breasts and nipples are sore and I’m having slight cramping in the ovaries section sometimes brown discharge and I’m really bloated. However like I do feel that feeling of my period coming but could I possibly be pregnant someone help me!! ( note my periods are irregular)