Pain after sex post a break of three months no sex time

Hi dear my girls & ladies !!!

I had sex with my bf after three months of LDR and we had a passion day & night in bed . We had like 7 rounds of vaginal intercourse and 2-3 times of fingering in between sex . In the span of 7 hours . And it was not very rough sex . And this is the first time I had 7 rounds in one night . Post this my vagina and the outer layer pains amd burns . This has never happened before and this is the first time I am sexually inactive for three months .

Is this normal for vagina to become sore and painful after a long break ? Has anybody else faced this ?