Possibility???

Me and my husband Had sex on the day i was supposed to ovualte (according to glow) and the day after as well. I did have AF afterwards but it was a day late and only 3 days. I normally have 5 day periods. The first two days seemed normal and the third day was super light compared to normal. What would have been my 5th day i noticed some spotting. I have been experiencing very sore breats, cravings and other symptoms and im wonderig if it is still possible to be pregnant? I tested yesterday and BFN. Has anyone experienced this before and got their BFP??