Virgin?

So today my boyfriend and I tried to have sex for the first time today and we both really struggled I was really tight and we wanted to know how tight I was the time before we tried having sex he was fingering me trying to make it easier but it didn’t so when after we had a few attempts he tried only putting one finger in quite far and it was so painful and his dick is 4 times the size of his finger next to eachother it’s really girthy any advice?