Baby fever, please help

I am 20 years old and I have such baby fever these days . I was always anti-baby because that will change my life situation. My boyfriend (22) and I have been dating for 5 months (known him for a year) and i envision us getting our first apartment together, getting married and having some babies. He got me a promise ring and I feel like am engaged which makes this phase of my life worse

Am on birth control and use condoms . I do not want a baby am currently doing a bridging course for nursing (already a nurse) i want my bachelors though .

I even look in the mirror and imagine myself pregnant and how cute Id look 😭

I need help😪