Spotting at 26 weeks?

So I just got over a yeast infection and decided to tickle my pickle (clit only) today. Did a session in the morning and a session in the afternoon...(I've had a yeast infection for like 20 days so I haven't had any stimulation down there).

Well, my second time I had a good orgasm and when I went to the restroom to clean myself up, after I wiped a couple times, I had three spots of pinkish watery blood. I wiped again and there was nothing.

I have a low lying placenta but have never been told not to do my normal routine. I called my midwife and she said as long as I don't bleed more, dont have cramps and I can feel the baby (which he is very active) that I'm fine but to monitor and keep off my feet.

I'm still freaked out tho....anyone gone through this? I will not be tickling the pickle for the rest of this pregnancy that's for sure! My husband thinks I should go to the hospital and he thinks that this lady isnt being thorough enough. I trust her and feel good, just worried. She is gonna do another ultrasound at my next appt, but that's not for two weeks. Any thoughts?