Vaginal Contraceptive Film

Have any of y'all used a VCF?? My doctor just told me about them today. I'm curious about their effectiveness. I'm currently pregnant and I'm not crazy about going back on the pill after my baby is born because I had such a struggle getting pregnant in the first place. I really believe that birth control played a huge part in that... Anyway, I'm married so I'm not concerned with STDs at this point in my life, just FYI 😁 Any feedback about the VCFs is greatly appreciated!! Thanks in advance!!