My Current Dilema (just venting)

Okay so I switched my birth control from the IUD to the NuvaRing a little over 2 weeks ago. My boyfriend and I had sex without protection the day after I put it in and then again a couple days after. Now I’m feeling things I’ve only felt when I was pregnant (extremely tired, bloated, gassy, nauseous in the morning, nipple pain, etc.). I don’t know if I’m pregnant or if I’m just adjusting to the new birth control but I feel like I can’t tell anyone. I can’t tell my boyfriend because I don’t wanna freak him out if it’s a false alarm. I can’t tell my best friend because I feel like she won’t take me seriously because I told her over a month ago I thought I was pregnant but then I got my period. I just feel like I need to get it out of my system and tell someone. If y’all have any advice or opinions or anything like that, I’d be open to hearing it. Thanks in advance 😊