So I have been on the shot since August 23, 2019. I let my S/O finish in me and I’ve never had an issue, but I always get my shot the first day of my window. Because of COVID I won’t be able to get my shot until the last day. My window is the 7th-21st. My S/O and I have still had sex like normal but I was super nauseous this morning and this evening & my boobs have been really tender. I was wondering if I could be pregnant during my window or if I could just be having side effects? Help.