Sign of pregnant or period? Tender breast, cramping, (been about month sicne I cum on her pantie, she had her tampon in, didn't wipe the cum off after)

Tender breast . Tender breast and cramping can be a sign of pregnancy and a sign the period is going to start. If it has been a month, have her take a home pregnancy test and put the question to rest. Hope this helps and will relieve your stress.
CONSIDERING ALL . Those factors, chances of pregnancy are very low. However, she needs testing please.