Can anything happen if you just dry hump?

My girlfriend I dry hump and her period only came in for two days? Is that a bad sign? But anyway a few weeks ago we dry hump an im not sure if my seam@n went in her, because when we were drying humping and when we were done there was like a big white thing on my thing. But she was wet like crazy. So should I be worry on anything? Because I didn’t had sex with her an we had our underwear on. Soo yea