Pelvic pain during sex

So I was wondering if anyone had to same problem with their partner during sex. Anyways today this morning I woke up with bad pelvic pain that last about half hour, and through out the day, I felt  pressure and a little bit of pain on the pelvic area. Also my partner and I been wanting to get pregnant with our second baby, my last period was 4/11 and my cycle is 32 long.. I was suppose to get my period 5/14 but I haven't got my period yet so im 5 days late (as of 4/17) I also took a pregnancy test today and it came negative.. Anyways I been having pain all day, not as bad this morning was just a little pain. Anyways my partner and i decided have sex but it didnt last long cause the pelvic pain was bad and he also told me his tip was hurting when he was in me but yeah Idk What to do, has anyone experience this?