Stretch marks and struggles

I'm 17 weeks pregnant tomorrow and definitely struggling with new stretch marks. I've always been a thicker average girl, so I have some on my inner thigh and my hips lightly previous to pregnancy. Now I'm getting dark purple ones on my lower abdomen, inner thighs more, behind my knees and calves as well. I knew my body would change but didn't think that much especially where my body isn't growing. My fiance loves my body no matter what and I know that but makes me feel slightly insecure and uncomfortable in my own skin. I love that my body is creating our little rainbow baby but I didn't think it would be hard seeing all the stretch marks. Anyone else feel like this? This is our first baby too. I've been using argan oil lotion which is bringing the colouration down and just got bio oil to help with my skins elasticity.