Do you/can we masturbate/have sex (or simply stimulating the clit) during first trimester?
Not sure if it’s safe! Read that orgasm can cause some contractions..?
Not sure if it’s safe! Read that orgasm can cause some contractions..?

It’s totally fine. Yes, they will be slight contractions but it will not hurt the embryo. I’m 21 weeks and still do it every now and then.