Light spotting after orgasm??

Jenna • I`m 28, hubby is 29 and we are lucky parents to a lively, joyful little boy, Norrin who will be one in September! We are also fur parents to a 3 year old Beagle!
OK ladies, so the hubby and I got a little frisky last night, but I'm still nervous about penetration until we are a little further along so we just pleased each other in other ways. I had an orgasm and thought nothing of it, but then this morning I woke up and when I wiped I had light pink spotting. It only lasted about 2 wipes but I've also had a little bit of light cramping. Everything I've been reading says that spotting after orgasm is totally normal, but it still has me really paranoid after our miscarriage in December. This is the first time I've had an orgasm since being pregnant, and thought without penetration we would be fine. If the bleeding comes back or gets worse I will definitely call my doctor to do more blood tests, but I just went in yesterday and my numbers are doubling faster than normal so I'm thinking it has to be the orgasm.  Is anyone else experiencing this??