Hey please listen to this and tell me what u think

I’ve been feeling extremely nauseous, frequent headaches, tender breast, small cramping in my abdomen, uterus and back pains, and I’ve been sleeping a lot and even though my boyfriend has been cumming in me a lot lately I just started birth control about 8 or 9 days ago and we waited until one week of me taking birth control before i let him finish inside of me in my opinion I think it’s maybe just side affects of the birth control but my boyfriend is lowkey freaking me out about thinking I’m pregnant so I just came here for a second opinion let me know what you think please and what I should do I honestly feel so Nauseous that all I can do is lay down and the headaches are just making it worse.