My moms making me regret losing my virginity and she doesn’t even know

I lost my virginity yesterday to my boyfriend of almost a year (I am 16 and he is 17, we used a condom) but he left the smallest lovebite on my neck and my mom was really angry.

She basically had ‘the talk’ with me and told me that people will form opinions of me if they see it, and also she told me that she doesn’t want me to go on birth control because she doesn’t want me to put on weight - and that essentially she doesn’t want me to have sex. She said that if we are ‘in the moment’ we won’t consider the consequences and she can’t support me financially if I have a child, she doesn’t want to be a grandmother now, and we would have to move house and I would ruin my education.

I feel terrible. I don’t know what to do, I have so much anxiety about it now and I’m just at a loss for words. I feel so dirty, I felt bad before about doing it because I didn’t think she would be happy if she knew - but she doesn’t know now and yet she’s said these things to me.

I don’t know what to do, please help.